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Router Products Command Reference
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About This Manual
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Router Product Overview
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User Interface Commands
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System Image, Microcode Image, and Configuration File Load Comm
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Terminal Line and Modem Support Commands
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System Management Commands
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Interface Commands
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ATM Commands
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DDR Commands
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Frame Relay Commands
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ISDN Commands
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LAN Emulation Commands
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SMDS Commands
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X.25 Commands
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Apollo Domain Commands
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AppleTalk Commands
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Banyan VINES Commands
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DECnet Commands
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IP Commands
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IP Routing Protocols Commands
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ISO CLNS Commands
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Novell IPX Commands
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XNS Commands
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Source-Route Bridging Commands
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Remote Source-Route Bridging Commands
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DLSw+ Configuration Commands
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STUN and BSTUN Configuration Commands
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LLC2 and SDLC Configuration Commands
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IBM Network Media Translation Commands
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DSPU and SNA Service Point Configuration Commands
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SNA Frame Relay Access Support Commands
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APPN Configuration Commands
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IBM Channel Attach Configuration Commands
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References and Recommended Reading
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Ethernet Type Codes
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Regular Expressions
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ASCII character Set
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Platform Support
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Switching Appendix
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Table Of Contents
System Image, Microcode Image, and Configuration File Load Commands
System Image, Microcode Image, and Configuration File Load Commands
This chapter provides detailed descriptions of the commands used to load and copy system images, microcode images, and configuration files. System images contain the system software. Microcode images contain microcode to be downloaded to various hardware devices. Configuration files contain commands entered to customize the function of the router.
Note
Commands in this chapter that have been replaced by new commands continue to perform their normal functions in the current release, but are no longer documented. Support for these commands will cease in a future release. maps the old commands with their replacements.
Table 3-1 Mapping Old Commands to New Commands
For router configuration information and examples, refer to the "Loading System Images, Microcode Images, and Configuration Files" chapter in the Router Products Configuration Guide.
async-bootp
To configure extended BOOTP requests for asynchronous interfaces as defined in RFC 1084, use the async-bootp global configuration command. Use the no form of this command to restore the default.
async-bootp tag [:hostname] data
no async-bootpSyntax Description
Table 3-2 Async-BOOTP Tag Keywords
Default
If no extended BOOTP commands are entered, the router software generates a gateway and subnet mask appropriate for the local network.
Command Mode
Global configuration
Usage Guidelines
Use the EXEC command show async-bootp to list the configured parameters. Use the no
async-bootp command to clear the list.Examples
The following example illustrates how to specify different boot files: one for a PC, and one for a Macintosh. With this configuration, a BOOTP request from the host on 128.128.1.1 results in a reply listing the boot filename as pcboot. A BOOTP request from the host named mac results in a reply listing the boot filename as macboot.
async-bootp bootfile :128.128.1.1 "pcboot"async-bootp bootfile :mac "macboot"The following example specifies a subnet mask of 255.255.0.0:
async-bootp subnet-mask 255.255.0.0The following example specifies a negative time offset of the local subnetwork of -3600 seconds:
async-bootp time-offset -3600The following example specifies the IP address of a time server:
async-bootp time-server 128.128.1.1Related Command
boot
To boot the router manually from the rom prompt, use the boot ROM monitor command.
This manual reload is only used for troubleshooting purposes, and the options directly depend upon hardware possibilities.
The rom monitor prompt is either ">" or for newer platforms "rommon x >". Enter only lowercase commands.
These commands work only if there is a valid image to boot. Also, from the rommon monitor prompt, issuing a prior reset command is necessary for the boot to be always successful.
boot
boot filename [ip-address]
boot flash [filename]
boot flash [partition-number:] [filename]
boot [flash] [device:filename] (Cisco 7000/7010 with 11.x roms only )
boot device:[filename] (Cisco 4500, 7000, and 7500 series)Syntax Description
Default
If you enter the boot command and press Return, the router boots from ROM by default.
If you enter the boot flash command without a filename, the first valid file in Flash memory is loaded.
For other defaults, see the Syntax Description section.
Command Mode
ROM monitor
Usage Guidelines
Use this command only when your router cannot find the configuration information needed in nonvolatile random-access memory (NVRAM). To get to the ROM monitor prompt (>), enter the reload EXEC command, and then press the Break key during the first 60 seconds of startup, or change the boot bits in the configuration register to zero, for manual booting, and then issue the reload command.
Refer to the Cisco 7000 Hardware Installation and Maintenance publication for the correct jumper settings for the Cisco 7000 series.
Examples
In the following example, the router is manually booted from ROM:
> bootF3:(ROM Monitor copyrights)In the following example, a router boots the file routertest from a network server with the IP address 131.108.15.112:
> boot routertest 131.108.15.112F3:(ROM Monitor copyrights)The following example shows the boot flash command without the filename argument.The first valid file in Flash memory is loaded.
> boot flashF3: 1858656+45204+166896 at 0x1000Booting gs7-k from flash memory RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR [OK - 1903912/13765276 bytes]F3: 1858676+45204+166896 at 0x1000(ROM Monitor copyrights)In the following example, the boot flash command is used with the filename gs7-k. That is the file that will be loaded.
> boot flash gs7-kF3: 1858656+45204+166896 at 0x1000Booting gs7-k from flash memory RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR [OK - 1903912/13765276 bytes]F3: 1858676+45204+166896 at 0x1000(ROM Monitor copyrights)In the following example, the boot flash flash command boots the relocatable image file igs-bpx-l from partition 2 in Flash memory:
> boot flash flash:2:igs-bpx-lF3: 3562264+98228+303632 at 0x30000B4(ROM Monitor copyrights)Use the following example if the rxboot image has been inadvertently erased. (The IOS is directly launched from the ROM monitor without the intermediate xboot stage. This startup requires less system memory.)
> boot flash:c4500-j-mz.103-7In the following example, the 7000 with 11.0 roms accepts the flash keyword for compatibility but ignores it, and boots from slot0:
> boot flash slot0:gs7-k-mz.103-9F3: 8468+3980384+165008 at 0x1000In the following example, the new rommon requires new syntax.
rommon 8 > b flash flash:c4500-j-mz.103-12boot of "flash flash:c4500-j-mz.103-12" using boot helper "bootflash:c4500-xboot.101-1" failedIn the following example, the command did not function because it must be entered in lowercase.
rommon 10 > BOOTcommand "BOOT" not foundRelated Command
boot bootldr
To specify a Flash device and filename containing the rxboot image that ROM uses for booting, use the boot bootldr global configuration command. Use the no form of the command to remove this rxboot image specification.
boot bootldr device: filename
no boot bootldrSyntax Description
Default
There is no default Flash device or filename.
Command Mode
Global configuration
Usage Guidelines
Use this command only with the Cisco 7000 series or Cisco 7500 series. The boot bootldr command sets the BOOTLDR environment variable in the current running configuration. You must specify both the device and the filename.
Note
The no form of the command sets the BOOTLDR environment variable to a null string. On the Cisco 7500 series, a null string causes the first image file in bootflash to be used as the rxboot image that ROM uses for booting.
Examples
In the following example, the internal Flash memory on a Cisco 7000 series contains the rxboot image:
boot bootldr flash:boot-imageThe following example specifies that the Flash memory card inserted in slot 0 of the RP or RSP card contains the rxboot image:
boot bootldr slot0:boot-imageRelated Commands
copy running-config startup-config
show boot
show flashboot bootstrap
To configure the filename that is used to boot a secondary bootstrap image, use the boot bootstrap global configuration command. Use the no form of this command to disable booting from a secondary bootstrap image.
boot bootstrap flash [filename]
no boot bootstrap flash [filename]
boot bootstrap mop filename [mac-address] [interface]
no boot bootstrap mop filename [mac-address] [interface]
boot bootstrap [tftp] filename [ip-address]
no boot bootstrap [tftp] filename [ip-address]Syntax Description
Default
No secondary bootstrap
Command Mode
Global configuration
Usage Guidelines
The boot bootstrap command, in conjunction with setting bit 9 on the configuration register of an AGS, CGS, or MGS router, causes the router to load a secondary bootstrap image over the network. The secondary bootstrap image then loads the specified system image file. The name of the secondary bootstrap file is boot-csc3 or boot-csc4, depending on the router model. See the appropriate hardware installation guide for details on the configuration register and secondary bootstrap filename.
Use this command when you have attempted to load a system image but have run out of memory even after compressing the system image. Secondary bootstrap allows you to load a larger system image through a smaller secondary image.
Example
In the following example, the system image file sysimage-2 will be loaded by using a secondary bootstrap image:
boot bootstrap sysimage-2boot buffersize
To modify the buffer size used to load configuration files, use the boot buffersize global configuration command. Use the no form of this command to return to the default setting.
boot buffersize bytes
no boot buffersizeSyntax Description
bytes
Specifies the size of the buffer to be used. There is no minimum or maximum size that can be specified.
Default
Buffer size of the NVRAM
Command Mode
Global configuration
Usage Guidelines
Normally, the router uses a buffer the size of the system NVRAM to hold configuration commands read from the network. You can increase this size if you have a very complex configuration.
Example
The following example sets the buffer size to 64000:
configure terminalboot buffersize 64000boot config
To specify the device and filename of the configuration file from which the router configures itself during initialization (startup), use the boot config global configuration command. Use the no form of the command to remove this specification.
boot config device:filename
no boot config
Syntax Description
Default
NVRAM (nvram:)
Command Mode
Global configuration
Usage Guidelines
Use this command only with the Cisco 7000 series or Cisco 7500 series. You set the CONFIG_FILE environment variable in the current running memory when you use the boot config command. This variable specifies the configuration file used for initialization (startup).
Note
If you specify nvram: as the device, and it contains only a distilled version of the configuration, the router displays an error message and does not update the CONFIG_FILE environment variable. (A distilled configuration is one that does not contain access lists.) If you specify a configuration file in the filename argument that does not exist or is not valid, the router displays an error message and does not update the CONFIG_FILE environment variable.
The router uses the NVRAM configuration during initialization when the CONFIG_FILE environment variable does not exist or when it is null (such as at first-time startup). If the router detects a problem with NVRAM or the configuration it contains, the router enters setup mode. Refer to the Router Products Getting Started Guide for more information on the setup command facility.
When you use the no form of this command, the router returns to using the NVRAM configuration as the startup configuration.
Examples
In the following example, the first line specifies that a Cisco 7000 series router should use the configuration file router-config located in internal Flash memory to configure itself during initialization. The second line copies the specification to the startup configuration, ensuring that this specification will take effect upon the next reload:
Router (config)# boot config flash:router-config^ZRouter# copy running-config startup-configThe following example instructs a Cisco 7500 series router to use the configuration file router-config located on the Flash memory card inserted in the second PCMCIA slot of the RSP card during initialization. The second line copies the specification to the startup configuration, ensuring that this specification will take effect upon the next reload:
Router (config)# boot config slot1:router-config^ZRouter# copy running-config startup-configRelated Commands
copy running-config startup-config
show boot
show flashboot host
To change the default name of the host configuration filename from which you want to load configuration commands, use the boot host global configuration command. Use the no form of this command to restore the host configuration filename to the default.
boot host mop filename [mac-address] [interface]
no boot host mop filename [mac-address] [interface]
boot host [tftp | rcp] filename [ip-address]
no boot host [tftp | rcp] filename [ip-address]Syntax Description
Default
The router uses its host name to form a host configuration filename. To form this name, the router converts its name to all lowercase letters, removes all domain information, and appends -confg.
Command Mode
Global configuration
Usage Guidelines
Use the service config command to enable the loading of the specified configuration file at reboot time. Without this command, the router ignores the boot host command and uses the configuration information in NVRAM. If the configuration information in NVRAM is invalid or missing, the service config command is enabled automatically.
The network server will attempt to load two configuration files from remote hosts. The first is the network configuration file containing commands that apply to all network servers on a network. The second is the host configuration file containing commands that apply to one network server in particular.
Example
The following example sets the host filename to wilma-confg at address 192.31.7.19:
boot host /usr/local/tftpdir/wilma-confg 192.31.7.19Related Commands
boot network
To change the default name of the network configuration file from which you want to load configuration commands, use the boot network global configuration command. Use the no form of this command to restore the network configuration filename to the default.
boot network mop filename [mac-address] [interface]
no boot network mop filename [mac-address] [interface]
boot network [tftp | rcp] filename [ip-address]
no boot network [tftp | rcp] filename [ip-address]Syntax Description
Default
The default filename is network-config. The default transfer protocol type is TFTP, if neither tftp nor rcp is specified.
Command Mode
Global configuration
Usage Guidelines
When booting from a network server, routers ignore routing information, static IP routes, and bridging information. As a result, intermediate routers are responsible for handling rcp or TFTP requests correctly. Before booting from a network server, verify that a server is available by using the ping command.
Use the service config command to enable the loading of the specified configuration file at reboot time. Without this command, the router ignores the boot network command and uses the configuration information in NVRAM. If the configuration information in NVRAM is invalid or missing, the service config command is enabled automatically.
The network server will attempt to load two configuration files from remote hosts. The first is the network configuration file containing commands that apply to all network servers on a network. Use the boot network command to identify the network configuration file.
The rcp software requires that a client send the remote username on each rcp request to the network server. When the boot network rcp command is executed, the router software sends the router host name as the both the remote and local usernames. The rcp implementation searches for the configuration files to be used relative to the account directory of the remote username on the network server, if the server has a directory structure, for example, as do UNIX systems.
Note
If you copy the system image to a personal computer used as a file server, the remote host computer must support the remote shell (rsh) protocol.
Examples
The following example changes the network configuration filename to bridge_9.1 and uses the default broadcast address:
boot network bridge_9.1service configThe following example changes the network configuration filename to bridge_9.1, specifies that rcp is to be used as the transport mechanism, and gives 131.108.1.111 as the IP address of the server on which the network configuration file resides:
boot network rcp bridge_9.1 131.108.1.111service configRelated Commands
boot system
To specify the system image that the router loads at startup, use one of the following boot system global configuration commands. Use a no form of this command to remove the startup system image specification.
boot system flash [device:][partition-number:][filename]
no boot system flash [device:][partition-number:][filename]
boot system mop filename [mac-address] [interface]
no boot system mop filename [mac-address] [interface]
boot system rom
no boot system rom
boot system [rcp | tftp] filename [ip-address]
no boot system [rcp | tftp] filename [ip-address]
no boot systemSyntax Description
Default
If you do not specify a system image file with the boot system command, the router uses the configuration register settings to determine the default system image filename for booting from a network server. The router forms the default boot filename by starting with the word cisco and then appending the octal equivalent of the boot field number in the configuration register, followed by a hyphen (-) and the processor type name (cisconn-cpu). See the appropriate hardware installation guide for details on the configuration register and default filename. See also the command config-register. See also the "Syntax Description" section preceding this section.
On the Cisco 7000 series and Cisco 7500 series, if you omit a keyword (flash, mop, rom, rcp, or tftp) from the boot system command, the system defaults to booting from a system image stored on a TFTP server.
Command Mode
Global configuration
Usage Guidelines
For this command to work, the config-register command must be set properly.
Enter several boot system commands to provide a fail-safe method for booting your router. The router stores and executes the boot system commands in the order in which you enter them in the configuration file. If you enter multiple boot commands of the same type—for example, if you enter two commands that instruct the router to boot from different network servers—then the router tries them in the order in which they appear in the configuration file. Use the boot system rom command to specify use of the ROM system image as a backup to other boot commands in the configuration.
Each time you write a new software image to Flash memory, you must delete the existing filename in the configuration file with the no boot system flash filename command. Then add a new line in the configuration file with the boot system flash filename command.
Note
You can boot the router from a compressed image on a network server. When a network server boots software, both the image being booted and the running image must fit into memory. Use compressed images to ensure that enough memory is available to boot the router. You can compress a software image on any UNIX platform using the compress command. Refer to your UNIX platform's documentation for the exact usage of the compress command. (You can also uncompress data with the UNIX uncompress command.)
The rcp protocol requires that a client send the remote username in an rcp request to a server. When the router executes the boot system rcp command, by default the router software sends the router host name as the both the remote and local usernames. The rcp software searches for the system image to boot from the remote server relative to the directory of the remote username (if the server has a directory structure as UNIX systems do, for example).
To force the router to stop booting, press the Break key during the first 60 seconds of startup. The router will enter ROM Monitor mode, where you can change the configuration register or boot the router manually.
For the Cisco 7000 series and the Cisco 7500 series, the boot system command modifies the BOOT environment variable in the running configuration. The BOOT environment variable specifies a list of bootable images on various devices.
For routers with the RP card (Cisco 7000 series), valid devices are flash and slot0. On the Cisco 7000 series, the following forms of the boot system command specify a list of bootable images in the BOOT environment variable:
•
no boot system flash flash:[filename]•
no boot system flash slot0:[filename]•
no boot system mop filename [mac-address] [interface]•
no boot system rom•
no boot system tftp filename [ip-address]•
no boot system rcp filename [ip-address]You can omit the device flash: from the boot system flash flash:[filename] command because the default device on a Cisco 7000 series is flash. Therefore, boot system flash [filename] is the same as boot system flash flash:[filename].
For routers with the RSP card (Cisco 7500 series), valid devices are bootflash, slot0, slot1, and tftp. On the Cisco 7500 series, the following forms of the boot system command specify a list of bootable images in the BOOT environment variable:
•
no boot system flash bootflash:[filename]•
no boot system flash slot0:[filename]•
no boot system flash slot1:[filename]•
no boot system tftp filename [ip-address]
Note
If an entry in the BOOT environment variable list does not specify a device, the router assumes the device is tftp. When tftp is the device, the router first loads the rxboot image to boot the system image file from a network server. If an entry in the BOOT environment variable list specifies an invalid device, the router skips that entry. To view the contents of the BOOT environment variable, use the show boot command.
To remove a single entry from the bootable image list, use the no form of a specific command. For example, to remove the entry that specifies a bootable image on a Flash memory card inserted in the second slot of the RSP card, use the no boot system flash slot1:[filename] command. All other entries in the list remain.
To eliminate all entries in the bootable image list, use the no boot system command. Issuing this command sets the BOOT environment variable to a null string, wiping out all entries. At this point, you can redefine the list of bootable images using the previous boot system commands. Remember to save your changes to your startup configuration by issuing the copy running-config startup-config command.
Note
Examples
The following example illustrates a list specifying two possible internetwork locations for a system image, with the ROM software being used as a backup:
boot system cs3-rx.90-1 192.31.7.24 boot system cs3-rx.83-2 192.31.7.19 boot system romThe following example boots the system boot relocatable image file igs-bpx-l from partition 2 of the Flash device:
boot system flash flash:2:igs-bpx-lThe following example instructs the router to boot from and image located on the Flash memory card inserted in slot 0 of the Cisco 7000 RP card or the Cisco 7500 series RSP card:
boot system flash slot0:new-configRelated Commands
config-register
copy flash rcp
copy flash tftp
copy rcp flash
copy running-config startup-config
copy tftp flash
ip rcmd remote-username
show bootcd
To set the default Flash device for the system, use the cd EXEC command.
cd [device:]
Syntax Description
Default
For the Cisco 7000 series, flash is the initial default device and the default device when you omit the device: argument.
For the Cisco 7500 series, slot0 is the initial default device and the default device when you omit the device: argument.
Command Mode
EXEC
Usage Guidelines
Use this command only with the Cisco 7000 series or the Cisco 7500 series. For all EXEC commands that have an optional device: argument, the system uses the device specified by the cd command when you omit the optional device: argument. For example, the dir command contains an optional device: argument and displays a list of files on a Flash memory device. When you omit this device: argument, the system shows a list of the files on the Flash device specified by the cd command.
Example
The following example sets the default device to the Flash memory card inserted in the slot 0 of the RP or RSP card:
cd slot0:Related Commands
copy
delete
dir
pwd
show flash
undeleteconfig-register
To change the router configuration register settings, use the config-register global configuration command.
config-register value
Syntax Description
Default
For the router models without Flash memory, the default is 0x101, which causes the router to boot from ROM and the Break key to be ignored. For router models with Flash memory, the default is 0x10F, which causes the router to boot from Flash memory and the Break key to be ignored.
Command Mode
Global configuration
Usage Guidelines
This command applies only to the Cisco 2000, Cisco 3000, Cisco 4000 series, or to the Cisco 7000 series. All other models use a hardware configuration register.
The lowest four bits of the configuration register (bits 3, 2, 1, and 0) form the boot field. The boot field determines if the router boots manually, from ROM, or from Flash or the network. Bit 8 controls the console Break key; when set to 1, it causes the Break key to be ignored. The remaining bits control other features of the router and are typically set to 0.
To change the boot field value and leave all other bits set to their default values, follow these guidelines:
•
•
•
For more information about the configuration register bit settings and default filenames, see the appropriate router hardware installation guide.
Example
In the following example, the configuration register is set to boot the system image from Flash memory:
config-register 0x010FRelated Commands
configure
To enter global configuration mode, use the configure privileged EXEC command. You must be in global configuration mode to enter global configuration commands.
configure {terminal | memory | network}
Syntax Description
terminal
Executes configuration commands from the terminal.
memory
For all platforms except the Cisco 7000 series and the Cisco 7500 series, executes the commands stored in NVRAM.
For the Cisco 7000 series and the Cisco 7500 series, executes the configuration specified by the CONFIG_FILE environment variable.
network
The copy rcp running-config or copy tftp running-config command replaces the configure network command. If you use rcp, see the copy rcp command for more information on copy rcp running-config. If you use TFTP, see the copy tftp command for more information on copy tftp running-config.
Default
For all platforms except the Cisco 7000 series and the Cisco 7500 series, there is no default.
For the Cisco 7000 series and the Cisco 7500 series, the router uses the NVRAM configuration (if valid) when the CONFIG_FILE environment variable does not exist or is null (such as at first-time startup).
Command Mode
Privileged EXEC
Usage Guidelines
If you do not specify terminal or memory, the router prompts you for the source of configuration commands. If you specify terminal, the router executes the commands you enter at the system prompts.
On all platforms except the Cisco 7000 series and the Cisco 7500 series, if you specify memory, the router executes the commands located in NVRAM. On the Cisco 7000 series and the Cisco 7500 series, if you specify memory, the router executes the commands pointed to by the CONFIG_FILE environment variable. The CONFIG_FILE environment variable specifies the device and filename of the configuration file that the router uses to configure itself during initialization. Possible devices are as follows:
•
•
•
•
•
When the CONFIG_FILE environment variable specifies NVRAM, the router executes the NVRAM configuration only if it is an entire configuration, not a distilled version. A distilled configuration is one that does not contain access lists.
To view the contents of the CONFIG_FILE environment variable, use the show boot command. To modify the CONFIG_FILE environment variable, use the boot config command and then save your changes by issuing the copy running-config startup-config command.
After you enter the configure command, the system prompt changes from <router-name># to <router-name>(config)#, indicating that you are in global configuration mode. To leave global configuration mode and return to the privileged EXEC prompt, press Ctrl-Z.
Note
Examples
In the following example, the router is configured from the terminal:
Router# configureConfiguring from terminal, memory, or network [terminal]?Enter configuration commands, one per line. End with CNTL/Z.Router(config)#In the following example, a Cisco 7000 series or Cisco 7500 series router executes the commands pointed to by the CONFIG_FILE environment variable:
configure memoryRelated Commands
boot config
copy running-config startup-config
show boot
show running-config
show startup-configconfigure overwrite-network
The copy rcp startup-config or copy tftp startup-config command replaces the configure overwrite-network command. If you use rcp, see the copy rcp command for more information on copy rcp startup-config. If you use TFTP, see the copy tftp command for more information on copy tftp startup-config.
continue
To return to the EXEC mode from ROM monitor mode, use the continue ROM monitor command.
continue
Syntax Description
This command has no arguments or keywords.
Command Mode
ROM monitor
Usage Guidelines
Use this command when you are in ROM monitor mode, and you want to return to EXEC mode to use the system image instead of reloading. On most platforms, the angle bracket (>) indicates that you are in ROM monitor mode. On the Cisco 1003, Cisco 4500, and Cisco 7500, rommon> is the default ROM monitor prompt. Typically, you are in ROM monitor mode when you manually load a system image or perform diagnostic tests. Otherwise, you will most likely never be in this mode.
CautionWhile in ROM monitor mode, the Cisco IOS system software is suspended until you issue either a reset or the continue command.
Example
In the following example, the continue command takes you from ROM monitor to EXEC mode:
> continueRouter#Related Command
copy
On the Cisco 7000 series or the Cisco 7500 series, to copy any file from a Flash device or NVRAM to another destination, use the following copy EXEC command:
copy file_id {running-config | startup-config | file_id} (Cisco 7000 series and Cisco 7500 series only)
Syntax Description
Default
If you omit the source or destination device, the router uses the default device specified by the cd command. If you omit the destination filename, the router uses the source filename.
Command Mode
EXEC
Usage Guidelines
Use this copy command with the Cisco 7000 series and the Cisco 7500 series.
On the Cisco 7000 series and Cisco 7500 series, the copy commands generally copy a file from a source to a destination. Some invalid combinations exist. Specifically, you cannot copy a running configuration to a running configuration, a startup configuration to a startup configuration, or TFTP to rcp.
When the destination is specified by the CONFIG_FILE or BOOTLDR environment variable, the router prompts you for confirmation before proceeding with the copy. When the destination is the only valid image in the BOOT environment variable, the router also prompts you for confirmation before proceeding with the copy.
The CONFIG_FILE environment variable specifies the configuration used during router initialization. The BOOTLDR environment variable specifies the Flash device and filename containing the rxboot image that ROM uses for booting. The BOOT environment variable specifies a list of bootable images on various devices. To view the contents of environment variables, use the show boot command. To modify the CONFIG_FILE environment variable, use the boot config command. To modify the BOOTLDR environment variable use the boot bootldr command. To modify the BOOT environment variable, use the boot system command. To save your modifications, use the copy running-config startup-config command.
If you do not specify a source or destination device, the router uses the default device specified by the cd command.
Examples
The following example copies the router-config1 file from the internal Flash memory of a Cisco 7500 series router to the router-backupconfig file on the Flash memory card inserted in the first slot of the RSP card:
copy bootflash:router-config1 slot0:router-backupconfigIn the following example, the router copies the router-image file from the Flash memory card inserted in the slot 0 of the RP or RSP card on a Cisco 7000 series or Cisco 7500 series, respectively, to the startup configuration:
copy slot0:router-image startup-configThe following example copies the NVRAM configuration file to the router-backupconfig file on the Flash memory card inserted in slot0 of the RP or RSP card:
copy nvram: slot0:router-backupconfigRelated Commands
boot config
copy running-config startup-config
delete
dir
show boot
verifycopy bootflash
To copy a bootstrap image from Flash memory to a network server on the Cisco 4500 series, use the copy bootflash EXEC command.
copy bootflash {rcp | tftp}
Syntax Description
rcp
Specifies a copy operation to a network server using rcp.
tftp
Specifies a TFTP server as the destination of the copy operation.
Command Mode
EXEC
Usage Guidelines
Use this command only on the Cisco 4500 router. You can use the network server copy of the bootstrap image as a backup copy or to verify that the copy in Flash memory is the same as the original file.
Use the copy bootflash rcp command to copy a bootstrap image from Flash memory to a network server using rcp. The rcp protocol requires that a client send the remote username of an rcp request to the server. When you issue the copy bootflash rcp command, by default the router software sends the username associated with the current TTY, if that name is valid. For example, if the user is connected to the router through Telnet and the user was authenticated through the username command, then the router software sends that username as the remote username.
Note
If the TTY username is invalid, the router software uses the router host name as the both the remote and local usernames. To specify a different remote username to be sent to the rcp server, use the
ip rcmd remote-username command. The rcp software copies the bootstrap image to an appropriate remote server. You can also specify the path of an existing directory along with the remote username.
CautionThe remote username must be associated with an account on the destination server. If you do not use the command to specify the name of a remote user associated with an account on the server, then the remote username associated with the current TTY process must be associated with an account on the server. If there is no username for the current TTY process, then the router host name must be associated with an account on the server. If the network administrator of the destination server did not establish accounts for the remote username used, this command will not execute successfully.
The rcp server must be properly configured to accept the rcp write request from the user on the router. For UNIX systems, you must add an entry to the .rhosts file for the remote user on the rcp server. For example, if the router contains the following configuration lines:
hostname Rtr1ip rcmd remote-username User0and the router's IP address translates to Router1.company.com, then the .rhosts file for User0 on the rcp server should contain the following line:
Router1.company.com Rtr1Refer to the documentation for your rcp server for more details.
If you copy the bootstrap image to a personal computer used as a file server, the remote host computer must support rcp.
Use the copy bootflash tftp command to copy a bootflash image from Flash memory to a TFTP server.
Examples
The following example shows how to use the copy bootflash rcp command on a Cisco 4500 router:
Router(config)# ip rcmd remote-username netadmin1 Router# copy bootflash rcpSystem flash directory, partition 2:File Length Name/status1 984 junk[1048 bytes used, 8387560 available, 8388608 total]Address or name of remote host [223.255.254.254]?Source file name? junkDestination file name [junk]? junkVerifying checksum for 'junk' (file # 1)... OKCopy 'junk' from Flash to serveras 'junk'? [yes/no]y-Upload to server doneFlash copy took 0:00:00 [hh:mm:ss]You will see a spinning line during the copy process.
The following example illustrates how to use the copy bootflash tftp command on a Cisco 4500 router:
Router# copy bootflash tftpSystem flash directory, partition 2:File Length Name/status1 984 junk[1048 bytes used, 8387560 available, 8388608 total]Address or name of remote host [223.255.254.254]?Source file name? junkDestination file name [junk]? junkVerifying checksum for 'junk' (file # 1)... OKCopy 'junk' from Flash to serveras 'junk'? [yes/no]y-Upload to server doneFlash copy took 0:00:00 [hh:mm:ss]Related Commands
copy mop bootflash
copy rcp bootflash
copy tftp bootflash
verify bootflash
erase bootflash
ip rcmd remote-username
show bootflashcopy flash
To copy a file from Flash memory to another destination, use one of the following copy flash EXEC commands:
copy flash {rcp | tftp}
copy flash {rcp | tftp | file_id} (Cisco 7000 series and Cisco 7500 series only)
Syntax Description
Default
On the Cisco 7000 series and the Cisco 7500 series, if you omit the destination device, the router uses the default device specified by the cd command. If you omit the destination filename, the router uses the source filename.
Command Mode
EXEC
Usage Guidelines
On all platforms except the Cisco 7500 series, the copy flash command copies from internal Flash memory.
On the Cisco 7500 series, the copy flash command copies from one of the three Flash memory devices on the Cisco 7500 series. The system prompts you to enter a specific device and filename. You can enter one of the following as the source device on the Cisco 7500 series:
•
•
•
You must follow the source device with a colon (:) and a filename.
Use the copy flash rcp command to copy a system image from Flash memory to a network server using rcp. You can use the copy of the system image as a backup copy. You can also use it to verify that the copy in Flash memory is the same as the original file.
The rcp software requires that a client send the remote username on each rcp request to the server. When you issue the copy flash rcp command, by default the router software sends the remote username associated with the current TTY, if that name is valid. For example, if the user is connected to the router through Telnet and was authenticated through the username command, then the router software sends that username as the remote username.
If the TTY username is invalid, the router software uses the router host name as the both the remote and local usernames.
Note
To specify a different remote username to be sent to the server, use the ip rcmd remote-username command. You can also specify the path of an existing directory along with the remote username.
Cautionan account on the destination server. If you do not use the ip rcmd remote-username command to specify the name of a remote user associated with an account on the server, then the remote username associated with the current TTY process must be associated with an account on the server. If there is no username for the current TTY process, then the router host name must be associated with an account on the server. If the network administrator of the destination server did not establish accounts for the remote username used, this command will not execute successfully when a default remote username is used.
The rcp server must be properly configured to accept the rcp write request from the user on the router. For UNIX systems, you must add an entry to the .rhosts file for the remote user on the rcp server. For example, if the router contains the following configuration lines:
hostname Rtr1ip rcmd remote-username User0and the router's IP address translates to Router1.company.com, then the .rhosts file for User0 on the rcp server should contain the following line:
Router1.company.com Rtr1Refer to the documentation for your rcp server for more details.
If you copy the system image to a personal computer used as a file server, the computer must support the rsh protocol.
Use the copy flash tftp command to copy a system image from Flash memory to a TFTP server. As with the copy flash rcp command, you can use the copy of the system image as a backup or to verify that the copy in Flash is the same as the original file.
On the Cisco 7000 series and Cisco 7500 series, the copy commands generally copy a file from a source to a destination. Some invalid combinations exist. Specifically, you cannot copy a running configuration to a running configuration, a startup configuration to a startup configuration, or TFTP to rcp. If you do not specify a source or destination device, the router uses the default device specified by the cd command.
On the Cisco 7000 series and Cisco 7500 series, when the destination is also specified by the CONFIG_FILE environment variable, the router prompts you for confirmation before proceeding with the copy. The CONFIG_FILE environment variable specifies the configuration used during router initialization. To view the contents of the CONFIG_FILE environment variable, use the show boot command. To modify the CONFIG_FILE environment variable, use the boot config command. To save your modifications to the CONFIG_FILE environment variable, use the copy running-config startup-config command.
Examples
The following example shows how to use the copy flash rcp command on a Cisco 4500 router:
Router# configure terminalRouter# ip rcmd remote-username netadmin1Ctrl-ZRouter# copy flash rcpSystem flash directory, partition 2:File Length Name/status1 984 junk[1048 bytes used, 8387560 available, 8388608 total]Address or name of remote host [223.255.254.254]?Source file name? junkDestination file name [junk]? junkVerifying checksum for 'junk' (file # 1)... OKCopy 'junk' from Flash to serveras 'junk'? [yes/no]y-Upload to server doneFlash copy took 0:00:00 [hh:mm:ss]You will see a spinning line during the copy process.
The following example illustrates how to use the copy flash rcp command:
Router# copy flash rcpIP address of remote host [255.255.255.255]? 101.2.13.110Name of file to copy? gsxxwriting gsxx - copy completeThe following example illustrates how to use the copy flash rcp command when copying from a particular partition of Flash memory:
Router# copy flash rcpSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write Direct[ Type ?<number> for partition directory; ? for full directory; q to abort]Which partition? [default = 1]The system will prompt if there are two or more partitions. If the partition entered is not valid, the process terminates. You have the option to enter a partition number, a question mark (?) for a directory display of all partitions, or a question mark and a number (?number) for a directory display of a particular partition. The default is the first partition.
System flash directory, partition 2:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Address or name of remote host [ABC.CISCO.COM]?Source file name?The file will be copied from the partition given by the user earlier:
Destination file name [default = source name]?Verifying checksum for 'master/igs-bfpx.100-4.3' (file # 1)... OKCopy 'master/igs-bfpx.100-4.3' from Flash to serveras 'master/igs-bfpx.100-4.3'? [yes/no] yesThe following example illustrates how to use the copy flash tftp command:
Router# copy flash tftpIP address of remote host [255.255.255.255]? 101.2.13.110Name of file to copy? gsxxwriting gsxx - copy completeThe following example illustrates how to use the copy flash tftp command when copying from a particular partition of Flash memory:
Router# copy flash tftpSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write Direct[Type ?<number> for partition directory; ? for full directory; q to abort]Which partition? [default = 1]The system will prompt if there are two or more partitions. If the partition entered is not valid, the process terminates. You have the option to enter a partition number, a question mark (?) for a directory display of all partitions, or a question mark and a number (?number) for a directory display of a particular partition. The default is the first partition.
System flash directory, partition 2:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Address or name of remote host [ABC.CISCO.COM]?Source file name?The file will be copied from the partition given by the user earlier:
Destination file name [default = source name]?Verifying checksum for 'master/igs-bfpx.100-4.3' (file # 1)... OKCopy 'master/igs-bfpx.100-4.3' from Flash to serveras 'master/igs-bfpx.100-4.3'? [yes/no] yesThe following example shows how to use the copy flash command on the Cisco 7000 series or the Cisco 7500 series:
copy flash slot0:new-configRelated Commands
boot config
boot system flash
cd
copy running-config startup-config
ip rcmd remote-username
show bootcopy mop
To copy a file from a MOP server to the router, use one of the following the copy mop EXEC commands:
copy mop bootflash (Cisco 4500 series only)
copy mop flash
Syntax Description
bootflash
Specifies to copy a bootstrap image from a MOP server to internal Flash memory on a Cisco 4500 series.
flash
Specifies internal Flash memory as the destination of the copy operation.
Default
None
Command Mode
EXEC
Usage Guidelines
The Cisco 7500 series does not support the copy mop command.
Use the copy mop bootflash command to copy a bootstrap image from a MOP server to the internal Flash memory on a Cisco 4500 series router. The router prompts for the name of the image file. It provides an option to erase the existing boot image in Flash before writing the new image into Flash. If no free space is available, or if files have never been written to Flash memory, you must erase Flash memory before copying the MOP image.
You do not need to specify the address of a MOP server. The router automatically solicits a MOP boot server for the specified file by sending a multicast file-request message.
The copying process takes several minutes; the actual time differs from network to network.
Before booting from Flash memory, verify that the checksum of the image in Flash memory matches the checksum listed in the README file that was distributed with the boot software image. The checksum of the boot image in Flash memory is displayed when the copy mop bootflash command completes. The README file was copied to the MOP server automatically when you installed the boot software image.
CautionIf the checksum values do not match, do not reboot the router. Instead, reissue the copy mop bootflash command and compare the checksums again. If the checksum is repeatedly wrong, copy the original boot software image back into Flash memory before you reboot the router from Flash memory.
Use the copy mop flash command to copy a system image from a MOP server to internal Flash memory. MOP must be enabled on the relevant interfaces before you can use this command.
The router prompts for the MOP filename. It provides an option to erase existing Flash memory before writing onto it. The entire copying process takes several minutes and will differ from network to network.
Before booting from Flash memory, verify that the checksum of the image in Flash memory matches the checksum listed in the README file that was distributed with the system software image. The checksum of the image in Flash memory is displayed at the bottom of the screen when you issue the copy mop flash command.
CautionIf the checksum value is not correct according to the value in the README file, do not reboot the router. Issue the copy mop flash command and compare the checksums again. If the checksum is repeatedly wrong, copy the original system software image back into Flash memory before you reboot the router from Flash memory. If you have a corrupted image in Flash memory and try to boot from Flash memory, the router will start the system image contained in ROM (assuming booting from a network server is not configured). If ROM does not contain a fully functional system image, the router might not function and will have to be reconfigured through a direct console port connection.
Examples
The following example shows a sample output from the copy mop flash command. In this example, the system image junk, which already exists in Flash memory, is copied to Flash memory, and there is enough memory to copy the file without erasing any existing files.
Router# copy mop flashSystem flash directory:File Length Name/status1 984 junk [deleted]2 984 junk[2096 bytes used, 8386512 available, 8388608 total]Source file name? junkDestination file name [junk]?Erase flash device before writing? [confirm]Flash contains files. Are you sure you want to erase? [confirm]Copy 'junk' from serveras 'junk' into Flash WITH erase? [yes/no]yesErasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedLoading junk from 1234.5678.9abc via Ethernet0: ![OK - 984/8388608 bytes]Verifying checksum... OK (0x14B3)Flash copy took 0:00:01 [hh:mm:ss]The following example shows sample output resulting from copying a system image into a partition of Flash memory. The system will prompt only if there are two or more read/write partitions or one read-only and one read/write partition and dual Flash bank support in boot ROMs. If the partition entered is not valid, the process terminates. You have the option to enter a partition number, a question mark (?) for a directory display of all partitions, or a question mark and a number (?number) for a directory display of a particular partition. The default is the first read/write partition.
Router# copy mop flashSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write Direct[Type ?<no> for partition directory; ? for full directory; q to abort]Which partition? [default = 2]If the partition is read-only and has dual Flash bank support in boot ROMs, the session continues as follows:
**** NOTICE ****Flash load helper v1.0This process will accept the copy options and then terminatethe current system image to use the ROM based image for the copy.Routing functionality will not be available during that time.If you are logged in via telnet, this connection will terminate.Users with console access can see the results of the copy operation.---- ******** ----Proceed? [confirm]System flash directory, partition 1:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Source file name? master/igs-bfpx-100.4.3Destination file name [default = source name]?The file will be copied into the partition given by the user earlier:
Loading master/igs-bfpx.100-4.3 from 131.108.1.111: !Erase flash device before writing? [confirm]Flash contains files. Are you sure? [confirm]Copy 'master/igs-bfpx.100-4.3' from MOP serveras 'master/igs-bfpx.100-4.3' into Flash WITH erase? [yes/no] yesIf the partition is read-write, the session continues as follows:
System flash directory, partition 2:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Source file name? master/igs-bfpx.100-4.3Destination file name [default = source name]?The file will be copied into the partition given by the user earlier:
Loading master/igs-bfpx.100-4.3 from 131.108.1.111: !Erase flash device before writing? [confirm]Flash contains files. Are you sure? [confirm]Copy 'master/igs-bfpx.100-4.3' from MOP serveras 'master/igs-bfpx.100-4.3' into Flash WITH erase? [yes/no] yesThe following example shows how to use the copy mop bootflash command to copy the bootstrap image junk:
Router# copy mop bootflashSystem flash directory:File Length Name/status1 984 junk [deleted]2 984 junk[2096 bytes used, 8386512 available, 8388608 total]Source file name? junkDestination file name [junk]?Erase flash device before writing? [confirm]Flash contains files. Are you sure you want to erase? [confirm]Copy 'junk' from serveras 'junk' into Flash WITH erase? [yes/no]yesErasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedLoading junk from 1234.5678.9abc via Ethernet0: ![OK - 984/8388608 bytes]Verifying checksum... OK (0x14B3)Flash copy took 0:00:01 [hh:mm:ss]Related Commands
boot config
boot system flash
cd
copy bootflash tftp
copy flash tftp
copy tftp bootflash
delete
dir
erase bootflash
show boot
show bootflash
verify
verify bootflash
verify flashcopy rcp
To copy a file from a network server to the router or to another destination using rcp, use one of the following copy rcp EXEC commands. The copy rcp running-config command replaces the configure network command. The copy rcp startup-config command replaces the configure overwrite-network command.
copy rcp bootflash (Cisco 4500 series only)
copy rcp {flash | running-config | startup-config}
copy rcp {flash | running-config | startup-config | file_id} (Cisco 7000 series and Cisco 7500 series only)
Syntax Description
Default
On the Cisco 7000 series and the Cisco 7500 series, if you omit the destination device, the router uses the default device specified by the cd command. If you omit the destination filename, the router uses the source filename.
Command Mode
EXEC
Usage Guidelines
The rcp protocol requires that a client send the remote username of an rcp request to the server. When you issue one of the copy rcp commands, by default the router software sends the username associated with the current TTY, if that name is valid. For example, if the user is connected to the router through Telnet and the user was authenticated through the username command, then the router software sends that username as the remote username.
Note
If the TTY username is invalid, the router software uses the router host name as the both the remote and local usernames. To specify a different remote username to be sent to the rcp server, use the ip rcmd remote-username command. You can also specify the path of an existing directory along with the remote username.
CautionThe remote username must be associated with an account on the destination server. If you do not use the ip rcmd remote-username command to specify the name of a remote user associated with an account on the server, then the remote username associated with the current TTY process must be associated with an account on the server. If there is no username for the current TTY process, then the router host name must be associated with an account on the server. If the network administrator of the destination server did not establish accounts for the remote username used, this command will not execute successfully when a default remote username is used.
If you copy a bootstrap image, system image, or configuration file from a personal computer used as a file server, the remote host computer must support rsh protocol.
Use the copy rcp bootflash command to copy a bootstrap image from a network server to Flash memory on a Cisco 4500 router using rcp. The router prompts for the name or address of the server and the name of the file to be copied. It provides an option to erase existing Flash memory before writing onto it, and allows you to confirm the erasure. The entire copying process takes several minutes and differs from network to network.
Before loading the router from Flash memory, verify that the checksum of the bootstrap image in Flash memory matches the checksum listed in the README file that was distributed with the system software image.
The checksum of the bootstrap image in Flash memory is displayed at the bottom of the screen when you issue the copy rcp bootflash command. The README file was copied to the server automatically when you installed the system software.
CautionIf the checksum value does not match the value in the README file, do not reboot the router. Reissue the copy rcp bootflash command and compare the checksums again. If the checksum is repeatedly wrong, copy the original bootstrap image back into Flash memory before you reboot the router from Flash memory. If you have a corrupted image in Flash memory and try to boot from Flash, the router will start the system image contained in ROM (assuming booting from a network server is not configured).
Use the copy rcp flash to copy a system image from a network server to the router's internal Flash memory using rcp. The router prompts for the address of the rcp server and rcp filename. When you issue this command, the system provides an option to erase existing Flash memory before writing onto it. The entire copying process takes several minutes and differs from network to network.
Before booting from Flash memory, verify that the checksum of the image in internal Flash memory matches the checksum listed in the README file that was distributed with the system software image. The checksum of the image in Flash memory is displayed at the bottom of the screen when you issue the copy rcp flash command. The README file was copied to the rcp server automatically when you installed the system software image.
CautionIf the checksum value does not match the value in the README file, do not reboot the router. Reissue the copy rcp flash command and compare the checksums again. If the checksum is repeatedly wrong, copy the original system software image back into Flash memory before you reboot the router from Flash memory. If you have a corrupted image in Flash memory and try to boot from Flash, the router will start the system image contained in ROM (assuming booting from a network server is not configured). If ROM does not contain a fully functional system image, the router will not function and will have to be reconfigured through a direct console port connection.
Use the copy rcp running-config command to copy a configuration file from a network server to the router's running configuration environment using rcp. You can copy either a host configuration file or a network configuration file. Accept the default value of host to copy and load a host configuration file containing commands that apply to one network server in particular. Enter network to copy and load a network configuration file containing commands that apply to all network servers on a network.
Note
Use the copy rcp startup-configuration command to copy a configuration file from a network server to the router's startup configuration environment using rcp.
On all platforms except the Cisco 7000 series and the Cisco 7500 series, the copy rcp startup-config command copies a configuration file from the network server to NVRAM. On the Cisco 7000 series and Cisco 7500 series, the command copies a configuration file from the network server to the location specified by the CONFIG_FILE environment variable. The CONFIG_FILE environment variable specifies the configuration used during router initialization.
Note
On the Cisco 7000 series and Cisco 7500 series, the copy commands generally copy a file from a source to a destination. Some invalid combinations exist. Specifically, you cannot copy a running configuration to a running configuration, a startup configuration to a startup configuration, or TFTP to rcp.
On the Cisco 7000 series and the Cisco 7500 series, the copy rcp command generally copies a file from a network server to another destination using rcp. If you do not specify a source or destination device, the router uses the default device specified by the cd command.
On the Cisco 7000 series and the Cisco 7500 series, when the destination is also specified by the CONFIG_FILE environment variable, the router prompts you for confirmation before proceeding with the copy. To view the contents of the CONFIG_FILE environment variable, use the show boot command. To modify the CONFIG_FILE environment variable, use the boot config command. To save your modifications, use the copy running-config startup-config command.
Examples
The following example shows how to use the copy rcp bootflash command on a Cisco 4500 router:
Router# configure terminalRouter(config)# ip rcmd remote-username netadmin1Ctrl-ZRouter# copy rcp bootflashBoot flash directory:File Length Name/status1 2622607 c4500-xboot[2622672 bytes used, 1571632 available, 4194304 total]Address or name of remote host [255.255.255.255]? 223.255.254.254Source file name? c4500-xboot.101Destination file name [c4500-xboot.101]?Accessing file 'c4500-xboot.101' on 223.255.254.254...Loading c4500-xboot.101 from 223.255.254.254 (via Ethernet0): -[OK]Erase flash device before writing? [confirm]Flash contains files. Are you sure you want to erase? [confirm]Copy 'c4500-xboot.101' from TFTP server intobootflash as 'c4500-xboot.101' WITH erase? [yes/no] yesErasing device... eeeeeeeeeeeeeeee ...erasedLoading c4500-xboot.101 from 223.255.254.254 (via Ethernet0):-[OK - 2622607/4194304 bytes]Verifying checksum... OK (0xE408)Flash copy took 0:00:10 [hh:mm:ss]You will see a spinning line during the copy process.
The following example shows how to use the copy rcp flash command on a Cisco 4500 system. The interface might differ slightly on other systems. This example copies a system image named junk from the netadmin1 directory on the remote server named SERVER1.CISCO.COM with an IP address of 131.108.101.101 to the router's Flash memory. To ensure that enough Flash memory is available to accommodate the system image to be copied, the router software allows you to erase the contents of Flash memory first.
Router1# configure terminalRouter1(config)# rcmd remote-username netadmin1Ctrl-ZRouter# copy rcp flashSystem flash directory, partition 2:File Length Name/status1 984 junk [deleted]2 984 junk[2096 bytes used, 8386512 available, 8388608 total]Address or name of remote host [255.255.255.255]? 131.108.101.101Source file name? junkDestination file name [junk]?Accessing file 'junk' on 131.108.101.101...Loading dirt/ssangiah/junk .from 131.108.101.101 (via Ethernet0): ! [OK]Erase flash device before writing? [confirm]Flash contains files. Are you sure you want to erase? [confirm]Copy 'junk' from serveras 'junk' into Flash WITH erase? [yes/no]yesErasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedLoading junk from 131.108.101.101 (via Ethernet0): ![OK - 984/8388608 bytes]Verifying checksum... OK (0x14B3)Flash copy took 0:00:01 [hh:mm:ss]The following example shows sample output resulting from copying a system image into a partition of Flash memory. The system prompts only if there are two or more read/write partitions or one read-only and one read/write partition and dual Flash bank support in boot ROMs. If the partition entered is not valid, the process terminates. You have the option to enter a partition number, a question mark (?) for a directory display of all partitions, or a question mark and a number (?number) for a directory display of a particular partition. The default is the first read/write partition.
Router# copy rcp flashSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write Direct[Type ?<no> for partition directory; ? for full directory; q to abort]Which partition? [default = 2]If the partition is read-only and has dual Flash bank support in boot ROM, the session continues as follows:
**** NOTICE ****Flash load helper v1.0This process will accept the copy options and then terminatethe current system image to use the ROM based image for the copy.Routing functionality will not be available during that time.If you are logged in via telnet, this connection will terminate.Users with console access can see the results of the copy operation.---- ******** ----Proceed? [confirm]System flash directory, partition 1:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Address or name of remote host [255.255.255.255]? 131.108.1.1Source file name? master/igs-bfpx-100.4.3Destination file name [default = source name]?The file will be copied into the partition given by the user earlier:
Loading master/igs-bfpx.100-4.3 from 131.108.1.111: !Erase flash device before writing? [confirm]Flash contains files. Are you sure? [confirm]Copy 'master/igs-bfpx.100-4.3' from TFTP serveras 'master/igs-bfpx.100-4.3' into Flash WITH erase? [yes/no] yesIf the partition is read-write, the session continues as follows:
System flash directory, partition 2:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Address or name of remote host [255.255.255.255]? 131.108.1.1Source file name? master/igs-bfpx.100-4.3Destination file name [default = source name]?The file will be copied into the partition given by the user earlier:
Accessing file 'master/igs-bfpx.100-4.3' on ABC.CISCO.COM...Loading master/igs-bfpx.100-4.3 from 131.108.1.111: !Erase flash device before writing? [confirm]Flash contains files. Are you sure? [confirm]Copy 'master/igs-bfpx.100-4.3' from TFTP serveras 'master/igs-bfpx.100-4.3' into Flash WITH erase? [yes/no] yesThe following example shows how to use the copy rcp running-config command on a Cisco 4500 system. The interface might differ slightly on other systems. This example specifies a remote username of netadmin1. Then it copies and runs a host configuration filename host1-confg from the netadmin1 directory on the remote server with an IP address of 131.108.101.101.
Router# configure terminalRouter(config)# ip rcmd remote-username netadmin1Ctrl-ZRouter# copy rcp running-configHost or network configuration file [host]?Address of remote host [255.255.255.255]? 131.108.101.101Name of configuration file [Router-confg]? host1-confgConfigure using host1-confg from 131.108.101.101? [confirm]Connected to 131.108.101.101Loading 1112 byte file host1-confg:![OK]Router#%SYS-5-CONFIG: Configured from host1-config by rcp from 131.108.101.101The following example shows how to use copy rcp startup-config command on a Cisco 4000 system. The interface might differ slightly on other systems. This example specifies a remote username of netadmin1. Then it copies and stores a configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of 131.108.101.101.
Router# configure terminalRouter(config)# ip rcmd remote-username netadmin1Ctrl-ZRouter# copy rcp startup-configAddress of remote host [255.255.255.255]? 131.108.101.101Name of configuration file[rtr2-confg]? host2-confgConfigure using rtr2-confg from 131.108.101.101?[confirm]Connected to 131.108.101.101Loading 1112 byte file rtr2-confg:![OK][OK]Router#%SYS-5-CONFIG_NV:Non-volatile store configured from rtr2-config by rcp from 131.108.101.101The following example uses the copy rcp file_id command to copy the router-image file from a network server using rcp to the Flash memory card inserted in slot 0 of the RP or RSP card:
copy rcp slot0:router-imageRelated Commands
boot config
boot system flash
cd
copy flash rcp
copy running-config rcp
copy running-config startup-config
copy startup-config rcp
ip rcmd remote-username
show boot
verify flashcopy running-config
To copy the router's running configuration file to another destination, use one of the following copy running-config EXEC commands. The copy running-config startup-config command replaces the write memory command. The copy running-config rcp or copy running-config tftp command replaces the write network command.
copy running-config {rcp | startup-config | tftp}
copy running-config {rcp | startup-config | tftp | file_id} (Cisco 7000 series and Cisco 7500 series only)
Syntax Description
Default
On the Cisco 7000 series and the Cisco 7500 series, if you omit the destination device, the router uses the default device specified by the cd command. If you omit the destination filename, the router uses the source filename.
Command Mode
EXEC
Usage Guidelines
Use the copy running-config {rcp | tftp} command to copy the current configuration file to a network server using rcp or TFTP. The configuration file copy can serve as a backup copy. You are prompted for a destination host and filename.
The rcp protocol requires that a client send the remote username of an rcp request to the server. When you issue the copy running-config rcp command, by default the router software sends the username associated with the current TTY, if that name is valid. For example, if the user is connected to the router through Telnet and the user was authenticated through the username command, then the router software sends that username as the remote username.
If the TTY username is invalid, the router software uses the router host name as the both the remote and local usernames.
Note
To specify a different remote username to be sent to the server, use the ip rcmd remote-username command. You can also specify the path of an existing directory along with the remote username.
CautionThe remote username must be associated with an account on the destination server. If you do not use the ip rcmd remote-username command to specify the name of a remote user associated with an account on the server, then the remote username associated with the current TTY process must be associated with an account on the server. If there is no username for the current TTY process, then the router host name must be associated with an account on the server. If the network administrator of the destination server did not establish accounts for the remote username used, this command will not execute successfully when a default remote username is used.
The rcp server must be properly configured to accept the rcp write request from the user on the router. For UNIX systems, you must add an entry to the .rhosts file for the remote user on the rcp server. For example, if the router contains the following configuration lines:
hostname Rtr1ip rcmd remote-username User0and the router's IP address translates to Router1.company.com, then the .rhosts file for User0 on the rcp server should contain the following line:
Router1.company.com Rtr1Refer to the documentation for your rcp server for more details.
If you copy the configuration file to a personal computer used as a file server, the computer must support the rsh protocol.
To run this command, the router must contain Flash memory.
On all platforms except the Cisco 7000 series and the Cisco 7500 series, the copy running-config startup-config command copies the currently running configuration to NVRAM. Use this command in conjunction with the reload command to restart the router with the configuration information stored in NVRAM.
If you issue the copy running-config startup-config command from a bootstrap system image, you receive a warning instructing you to indicate whether you want your previous NVRAM configuration to be overwritten and configuration commands lost. This warning does not appear if NVRAM contains an invalid configuration or if the previous configuration in NVRAM was generated by a bootstrap system image.
On the Cisco 7000 series and Cisco 7500 series, the copy commands generally copy a file from a source to a destination. Some invalid combinations exist. Specifically, you cannot copy a running configuration to a running configuration, a startup configuration to a startup configuration, or TFTP to rcp.
On the Cisco 7000 series or Cisco 7500 series, the copy running-config startup-config command copies the currently running configuration to the location specified by the CONFIG_FILE environment variable. This variable specifies the device and configuration file used for initialization. When the CONFIG_FILE environment variable points to NVRAM or when this variable does not exist (such as at first-time startup), the router writes the current configuration to NVRAM. If the current configuration is too large for NVRAM, the router displays a message and stops executing the command. Use this command in conjunction with the reload command to restart the router with the configuration information stored in the CONFIG_FILE environment variable.
When the CONFIG_FILE environment variable specifies a valid device other than nvram: (that is, flash, bootflash, slot0, or slot1), the router writes the current configuration to the specified device and filename and stores a distilled version of the configuration in NVRAM. A distilled version of the configuration is one that does not contain access list information. If NVRAM already contains a copy of a complete configuration, the router prompts you to confirm the copy.
To view the contents of the CONFIG_FILE environment variable, use the show boot command. To modify the CONFIG_FILE environment variable, use the boot config command. To save your modifications to the CONFIG_FILE environment variable, use the copy running-config startup-config command.
Examples
The following example shows how to use the copy running-config rcp command on a Cisco 4500 system. The interface may differ slightly on other systems. This example specifies a remote username of netadmin1. Then it copies the running configuration file, named Rtr2-confg to the netadmin1 directory on the remote host with an IP address of 131.108.101.101.
Router# configure terminalRouter(config)# ip rcmd remote-username netadmin1Ctrl-ZRouter# copy running-config rcpRemote host[]? 131.108.101.101Name of configuration file to write [Rtr2-confg]?Write file rtr2-confg on host 131.108.101.101?[confirm]Building configuration...[OK]Connected to 131.108.101.101The following example shows the copy running-config startup-config command and the warning the system provides if you are trying to save configuration information from bootstrap into the system:
Router(boot)#copy running-config startup-configWarning: Attempting to overwrite an NVRAM configuration writtenby a full system image. This bootstrap software does not supportthe full configuration command set. If you perform this command now,some configuration commands may be lost.Overwrite the previous NVRAM configuration?[confirm]Enter no to escape writing the configuration information to memory.
In the following example, a Cisco 7000 series or Cisco 7500 series router copies the running configuration to the startup configuration specified by the CONFIG_FILE variable:
copy running-config startup-configThe following example copies the running configuration to a file named router-confg1 on the Flash memory card inserted in slot 0 of the RP or RSP card on a Cisco 7000 series or Cisco 7500 series, respectively:
copy running-config slot0:router-confg1Related Commands
boot config
cd
copy rcp running-config
copy rcp startup-config
copy startup-config
ip rcmd remote-username
reload
show bootcopy startup-config
To copy the router's startup configuration file to another destination, use one of the following copy startup-config EXEC commands:
copy startup-config {rcp | running-config | tftp}
copy startup-config {rcp | running-config | tftp | file_id} (Cisco 7000 series and Cisco 7500 series only)
Syntax Description
Default
On the Cisco 7000 series and the Cisco 7500 series, if you omit the destination device, the router uses the default device specified by the cd command. If you omit the destination filename, the router uses the source filename.
Command Mode
EXEC
Usage Guidelines
On all platforms except the Cisco 7000 series and the Cisco 7500 series, this command copies the contents of the configuration file in NVRAM to a network server or to the currently running configuration.
On the Cisco 7000 series and Cisco 7500 series, the copy commands generally copy a file from a source to a destination. Some invalid combinations exist. Specifically, you cannot copy a running configuration to a running configuration, a startup configuration to a startup configuration, or TFTP to rcp.
On the Cisco 7000 series and Cisco 7500 series, the command copies the configuration file pointed to by the CONFIG_FILE environment variable to another destination. To view the contents of the CONFIG_FILE environment variable, use the show boot command. To modify the CONFIG_FILE environment variable, use the boot config command. To save your modifications to the CONFIG_FILE environment variable, use this copy running-config startup-config command.
The rcp protocol requires that a client send the remote username of an rcp request to the server. When you issue the copy startup-config rcp command, by default the router software sends the username associated with the current TTY, if that name is valid. For example, if the user is connected to the router through Telnet and the user was authenticated through the username command, then the router software sends that username as the remote username.
If the TTY username is invalid, the router software uses the router host name as the both the remote and local usernames.
Note
To specify a different remote username to be sent to the server, use the ip rcmd remote-username command. You can also specify the path of an existing directory along with the remote username.
CautionThe remote username must be associated with an account on the destination server. If you do not use the ip rcmd remote-username command to specify the name of a remote user associated with an account on the server, then the remote username associated with the current TTY process must be associated with an account on the server. If there is no username for the current TTY process, then the router host name must be associated with an account on the server. If the network administrator of the destination server did not establish accounts for the remote username used, this command will not execute successfully when a default remote username is used.
The rcp server must be properly configured to accept the rcp write request from the user on the router. For UNIX systems, you must add an entry to the .rhosts file for the remote user on the rcp server. For example, if the router contains the following configuration lines:
hostname Rtr1ip rcmd remote-username User0and the router's IP address translates to Router1.company.com, then the .rhosts file for User0 on the rcp server should contain the following line:
Router1.company.com Rtr1Refer to the documentation for your rcp server for more details.
If you copy the configuration file to a personal computer used as a server, the computer must support the rsh protocol.
Examples
The following example shows how to use the copy startup-config rcp command on a Cisco 4500 router. The interface might differ slightly on other systems.
Router# configure terminalRouter(config)# ip rcmd remote-username netadmin2Ctrl-ZRouter# copy startup-config rcpRemote host[]? 131.108.101.101Name of configuration file to write [rtr2-confg]? <cr>Write file rtr2-confg on host 131.108.101.101?[confirm] <cr>![OK]On a Cisco 7000 series or Cisco 7500 series, the following example uses the copy startup-config command to copy the startup configuration file (specified by the CONFIG_FILE environment variable) to a Flash memory card inserted in slot 0 of the RP or RSP card:
copy startup-config slot0:router-confgRelated Commands
boot config
copy rcp startup-config
copy running-config
ip rcmd remote-username
show bootcopy tftp
To copy a file from a TFTP server to the router or to another destination, use one of the following copy tftp EXEC commands. The copy tftp running-config command replaces the configure network command. The copy tftp startup-config command replaces the configure overwrite-network command.
copy tftp bootflash (Cisco 4500 series only)
copy tftp {flash | running-config | startup-config}
copy tftp {flash | running-config | startup-config | file_id} (Cisco 7000 series and Cisco 7500 series only)
Syntax Description
Default
On the Cisco 7000 series and the Cisco 7500 series, if you omit the destination device, the router uses the default device specified by the cd command. If you omit the destination filename, the router uses the source filename.
Command Mode
EXEC
Usage Guidelines
The system prompts for the address of the TFTP server and TFTP filename if you do not provide them at the command line. When copying to internal Flash memory, the system provides an option to erase existing internal Flash memory before writing onto it. The entire copying process takes several minutes and differs from network to network.
describes the characters that you may see during processing of the copy tftp command.
Before booting from Flash memory, verify that the checksum of the image in Flash memory matches the checksum listed in the README file that was distributed with the system software image. The checksum of the image in Flash memory is displayed at the bottom of the screen when you issue the copy tftp flash command. The README file was copied to the TFTP server automatically when you installed the system software image.
CautionIf the checksum value is not correct according to the value in the README file, do not reboot the router. Issue the copy tftp flash command and compare the checksums again. If the checksum is repeatedly wrong, copy the original system software image back into Flash memory before you reboot the router from Flash memory. If you have a corrupted image in Flash memory and try to boot from Flash, the router will start the system image contained in ROM (assuming booting from a network server is not configured). If ROM does not contain a fully functional system image, the router will not function and will have to be reconfigured through a direct console port connection.
Note
On the Cisco 7000 series and Cisco 7500 series, the copy commands generally copy a file from a source to a destination. Some invalid combinations exist. Specifically, you cannot copy a running configuration to a running configuration, a startup configuration to a startup configuration, or TFTP to rcp.
Examples
The following example shows sample output of copying a system image named junk into Flash memory:
Router# copy tftp flashSystem flash directory, partition 2:File Length Name/status1 984 junk [deleted]2 984 junk[2096 bytes used, 8386512 available, 8388608 total]Address or name of remote host [255.255.255.255]? 223.255.254.254Source file name? junkDestination file name [junk]?Accessing file 'junk' on 223.255.254.254...Loading dirt/ssangiah/junk .from 223.255.254.254 (via Ethernet0): - [OK]Erase flash device before writing? [confirm]Flash contains files. Are you sure you want to erase? [confirm]Copy 'junk' from serveras 'junk' into Flash WITH erase? [yes/no]yesErasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedLoading junk from 223.255.254.254 (via Ethernet0): -[OK - 984/8388608 bytes]Verifying checksum... OK (0x14B3)Flash copy took 0:00:01 [hh:mm:ss]You will see a spinning line during the copy process. A series of "V" characters indicates that a checksum verification of the image is occurring after the image is written to Flash memory.
The following example shows sample output resulting from copying a system image into a partition of Flash memory. The system will prompt only if there are two or more read/write partitions or one read-only and one read/write partition and dual Flash bank support in boot ROMs. If the partition entered is not valid, the process terminates. You can enter a partition number, a question mark (?) for a directory display of all partitions, or a question mark and a number (?number) for directory display of a particular partition. The default is the first read/write partition.
Router# copy tftp flashSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write Direct[Type ?<no> for partition directory; ? for full directory; q to abort]Which partition? [default = 2]If the partition is read-only and has dual Flash bank support in boot ROM, the session continues as follows:
**** NOTICE ****Flash load helper v1.0This process will accept the copy options and then terminatethe current system image to use the ROM based image for the copy.Routing functionality will not be available during that time.If you are logged in via telnet, this connection will terminate.Users with console access can see the results of the copy operation.---- ******** ----Proceed? [confirm]System flash directory, partition 1:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Address or name of remote host [255.255.255.255]? 131.108.1.1Source file name? master/igs-bfpx-100.4.3Destination file name [default = source name]?The file will be copied into the partition given by the user earlier:
Loading master/igs-bfpx.100-4.3 from 131.108.1.111: !Erase flash device before writing? [confirm]Flash contains files. Are you sure? [confirm]Copy 'master/igs-bfpx.100-4.3' from TFTP serveras 'master/igs-bfpx.100-4.3' into Flash WITH erase? [yes/no] yesIf the partition is read-write, the session continues as follows:
System flash directory, partition 2:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Address or name of remote host [255.255.255.255]? 131.108.1.1Source file name? master/igs-bfpx.100-4.3Destination file name [default = source name]?The file will be copied into the partition given by the user earlier:
Accessing file 'master/igs-bfpx.100-4.3' on ABC.CISCO.COM...Loading master/igs-bfpx.100-4.3 from 131.108.1.111: !Erase flash device before writing? [confirm]Flash contains files. Are you sure? [confirm]Copy 'master/igs-bfpx.100-4.3' from TFTP serveras 'master/igs-bfpx.100-4.3' into Flash WITH erase? [yes/no] yesRelated Commands
boot config
boot system flash
copy flash tftp
show boot
verify
verify flashcopy verify
The verify or verify flash command replaces this command. Refer to the descriptions of the verify and verify flash commands for more information.
copy verify bootflash
The verify bootflash command replaces this command. Refer to the description of the verify bootflash command for more information.
delete
To delete any file on a Flash memory device, use the delete EXEC command.
delete [device:]filename
Syntax Description
Default
For the Cisco 7000 series, the initial default device is flash:. For the Cisco 7500 series, the initial default device is slot0:. Otherwise, the default device is that specified by the cd command.
Command Mode
EXEC
Usage Guidelines
Use this command only with the Cisco 7000 series and the Cisco 7500 series.
If you omit the device, the router uses the default device specified by the cd command.
If you attempt to delete the configuration file specified by the CONFIG_FILE or BOOTLDR environment variable, the system prompts you to confirm the deletion. Also, if you attempt to delete the last valid system image specified in the BOOT environment variable, the system prompts you to confirm the deletion. When you delete a file, the router simply marks the file as deleted, but does not erase the file. This feature allows you to later recover a "deleted" file using the undelete command. You can delete and undelete a file up to 15 times. To permanently delete all "deleted" files on a Flash memory device, use the squeeze command.
Note
Example
The following example deletes the router-backupconfig file from the Flash card inserted in first slot of the RSP card:
delete slot0:router-backupconfigRelated Commands
dir
To display a list of files on a Flash memory device, use the dir EXEC command.
dir [/all | /deleted | /long] [device:][filename]
Syntax Description
Default
For the Cisco 7000 series, the initial default device is flash:. For the Cisco 7500 series, the initial default device is slot0:. Otherwise, the default device is that specified by the cd command. When you omit all keywords and arguments, the router displays only undeleted files for the default device specified by the cd command in short format.
Command Mode
EXEC
Usage Guidelines
Use this command only with the Cisco 7000 series and the Cisco 7500 series. If you omit the device, the router uses the default device specified by the cd command.
When you use one of the keywords (/all, /deleted, /long), the system displays file information in long format. The long format includes the following categories:
•
•
•
•
•
•
•
•
•
When you omit all keywords (/all, /deleted, /long), the system displays file information in short format. Short format includes the following categories:
•
•
•
•
Examples
The following example instructs the router to list undeleted files for the default device specified by the cd command. Notice that the router displays the information in short format because no keywords are used.
Gouda#dir-#- -length- -----date/time------ name1 620 May 4 1993 21:38:04 config12 620 May 4 1993 21:38:14 config27993896 bytes available (1496 bytes used)The following example displays the long version of the same device:
Gouda#dir /long-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. 1 37CEC52E 202EC 7 620 May 4 1993 21:38:04 config12 .. 1 37CEC52E 205D8 7 620 May 4 1993 21:38:14 config27993896 bytes available (1496 bytes used)Related Commands
erase
To erase a saved configuration, use one of the following erase EXEC commands. The erase startup-config command replaces the write erase command.
erase startup-config
erase [device:]filename (Cisco 7000 series and Cisco 7500 series only)Syntax Description
Default
For the Cisco 7000 series, the initial default device is flash:. For the Cisco 7500 series, the initial default device is slot0:. Otherwise, the default device is that specified by the cd command.
Command Mode
EXEC
Usage Guidelines
Use the erase startup-config command on all platforms to erase the startup configuration. On all platforms except the Cisco 7000 series or Cisco 7500 series, this command erases the configuration stored in NVRAM.
When you use the erase startup-config command on the Cisco 7000 series and the Cisco 7500 series, the router erases or deletes the configuration pointed to by CONFIG_FILE environment variable. The CONFIG_FILE environment variable specifies the configuration file used for initialization. If the CONFIG_FILE environment variable points to NVRAM, the router erases NVRAM. If the CONFIG_FILE environment variable specifies a Flash memory device and configuration filename, the router deletes the configuration file. That is, the router marks the file as "deleted."
Use the erase [device:]filename command only with the Cisco 7000 series or the Cisco 7500 series. This command functions like the delete command. That is, when you erase a specific file, the system marks the file as deleted, allowing you to later undelete an erased file. See the delete and undelete commands for more information. If you omit the device, the router uses the default device specified by the cd command.
If you attempt to erase the configuration file specified by the CONFIG_FILE or BOOTLDR environment variable, the system prompts you to confirm the deletion. Also, if you attempt to erase the last valid system image specified in the BOOT environment variable, the system prompts you to confirm the deletion.
Note
Examples
The following example illustrates how to erase the configuration located in NVRAM or specified by the CONFIG_FILE environment variable:
erase startup-configThe following example deletes the myconfig file from a Flash memory card inserted in the slot 0 of the RP or RSP card:
erase slot0:myconfigRelated Commands
boot config
delete
show boot
show startup-config
undeleteerase bootflash
To erase the boot image in Flash memory on the Cisco 4500, use the erase bootflash EXEC command.
erase bootflash
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
You can use this command only on routers that have two banks of Flash memory: one bank for the boot image and the second bank for the system image.
Example
The following example erases the boot image in Flash memory:
erase bootflashRelated Commands
copy bootflash tftp
copy mop bootflash
copy tftp bootflash
verify bootflash
show bootflasherase flash
To erase internal Flash memory, use the erase flash EXEC command. This command replaces the copy erase flash command.
erase flash
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
The Cisco 7500 series does not support this command.
Example
The following example illustrates how to use this command. Note that this example reflects the dual Flash bank feature available only on low-end systems (the AccessPro PC card, Cisco 2500 series, Cisco 3000 series, and Cisco 4000 series).
Router# erase flashSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write Direct[Type ?<no> for partition directory; ? for full directory; q to abort]Which partition? [default = 2]The system will prompt only if there are two or more read/write partitions. If the partition entered is not valid or is the read-only partition, the process terminates. You can enter a partition number, a question mark (?) for a directory display of all partitions, or a question mark and a number (?number) for directory display of a particular partition. The default is the first read/write partition.
System flash directory, partition 2:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]Erase flash device, partition 2? [confirm] <Return>format
To format Flash memory, use the format EXEC command.
format [spare spare-number] device1: [[device2:][monlib-filename]]
CautionThe following formatting procedure erases all information in the Flash memory. To prevent the loss of important data, proceed carefully.
Syntax Description
Default
The default monlib file is the one bundled with the system software.
Command Mode
EXEC
Usage Guidelines
Use this command with the Cisco 7000 series PCMCIA slot or the Cisco 7500 series. On the Cisco 7000 series, use the format command to format your Flash memory card inserted in slot 0 of the RP card. On the Cisco 7500 series, use the format command to format internal Flash memory (bootflash) or your Flash memory cards.
In some cases, you might need to insert a new PCMCIA Flash memory card and load images or backup configuration files onto it. Before you can use a new Flash memory card, you must format it.
Flash memory cards have sectors that can fail. On the Cisco 7000 series and the Cisco 7500 series, you can reserve certain Flash memory sectors as "spares" for use when other sectors fail. Use the format command to specify between 0 and 16 sectors as spares. If you reserve a small number of spare sectors for emergencies, you do not waste space because you can use most of the Flash memory card. If you specify zero spare sectors and some sectors fail, you must reformat the Flash memory card and thereby erase all existing data.
The monlib file is the ROM monitor library. The ROM monitor uses the monlib file to access files in the Flash file system. The Cisco IOS Release 11.0 system software contains a monlib file.
In the command syntax, device1 is the device to format and device2 contains the monlib file to use. When you omit the [[device2:][monlib-filename]] argument, the system formats device1 using the monlib that is bundled with the system software. When you omit device2 from the [[device2:][monlib-filename]] argument, the system formats device1 using the named monlib file from the device specified by the cd command. When you omit monlib-filename from the [[device2:][monlib-filename]] argument, the system formats device1 using device2's monlib file. When you specify the whole [[device2:][monlib-filename]] argument, the system formats device1 using the specified monlib file from the specified device. Note that you can specify device1's own monlib file in this argument. When the system cannot find a monlib file, the system terminates the formatting process.
CautionYou can read from or write to Flash memory cards formatted for Cisco 7000 series Route Processor (RP) cards in your Cisco 7500 series, but you cannot boot the Cisco 7500 series from a Flash memory card that is formatted for the Cisco 7000 series. Similarly, you can read from or write to Flash memory cards formatted for Cisco 7500 series in your Cisco 7000 series, but you cannot boot the Cisco 7000 series from a Flash memory card that is formatted for the Cisco 7500 series.
Example
The following example shows the format command that formats a Flash memory card inserted in slot 0 of the RP or RSP card:
Router# format slot0:Running config file on this device, proceed? [confirm]yAll sectors will be erased, proceed? [confirm]yEnter volume id (up to 31 characters): <Return>Formatting sector 1 (erasing)Format device slot0 completedWhen the router returns you to the EXEC prompt, the new Flash memory card is successfully formatted and ready for use.
Related Commands
copy
delete
dir
show file
show flash
squeeze
undeleteip rarp-server
Use the ip rarp-server interface configuration command to allow the router to act as a Reverse Address Resolution Protocol (RARP) server. Use the no form of this command to restore the interface to the default of no RARP server support.
ip rarp-server ip-address
no ip rarp-server ip-addressSyntax Description
Default
Disabled
Command Mode
Interface configuration
Usage Guidelines
This feature makes diskless booting of clients possible between network subnets where the client and server are on separate subnets.
RARP server support is configurable on a per interface basis, so that the router does not interfere with RARP traffic on subnets that do not need RARP assistance from the router.
The router answers incoming RARP requests only if both of the following two conditions are met:
•
•
Use the show ip arp EXEC command to display the contents of the IP ARP cache.
Sun Microsystems, Inc. makes use of RARP and UDP-based network services to facilitate network-based booting of SunOS on their workstations. By bridging RARP packets and using both the ip helper-address interface configuration command and the ip forward-protocol global configuration command, the router should be able to perform the necessary packet switching to enable booting of Sun workstations across subnets. Unfortunately, some Sun workstations assume that the sender of the RARP response, in this case the router, is the host the client can contact to TFTP load the bootstrap image. This causes the workstations to fail to boot.
By using the ip rarp-server feature, the router can be configured to answer these RARP requests, and the client machine should be able to reach its server by having its TFTP requests forwarded through the router that acts as the RARP server.
In the case of RARP responses to Sun workstations attempting to diskless boot, the IP address specified in the ip rarp-server interface configuration command should be the IP address of the TFTP server. In addition to configuring RARP service, the router must also be configured to forward UDP-based Sun portmapper requests to completely support diskless booting of Sun workstations. This can be accomplished using configuration commands of the form:
ip forward-protocol udp 111interface interface nameip helper-address target-addressRFC 903 documents the Reverse Address Resolution Protocol.
Examples
The following partial example configures the router to act as a RARP server. The router is configured to use the primary address of the specified interface in its RARP responses.
arp 128.105.2.5 0800.2002.ff5b arpainterface ethernet 0ip address 128.105.3.100 255.255.255.0ip rarp-server 128.105.3.100In the following example, the router is configured to act as a RARP server, with TFTP and portmapper requests forwarded to the Sun server:
! Allow the router to forward broadcast portmapper requestsip forward-protocol udp 111! Provide the router with the IP address of the diskless sunarp 128.105.2.5 0800.2002.ff5b arpainterface ethernet 0! Configure the router to act as a RARP server, using the Sun Server's IP! address in the RARP response packet.ip rarp-server 128.105.3.100! Portmapper broadcasts from this interface are sent to the Sun Server.ip helper-address 128.105.3.100Related Commands
A dagger (†) indicates that the command is documented in another chapter.
ip forward-protocol †
ip helper-address †ip rcmd domain-lookup
Use the ip rcmd domain-lookup global configuration command to enable Domain Name System (DNS) security for rcp and rsh. To bypass DNS security for rcp and rsh, use the no form of this command.
ip rcmd domain-lookup
no ip rcmd domain-lookupSyntax Description
This command has no arguments or keywords.
Default
Enabled
Command Mode
Global configuration
Usage Guidelines
If you do not want to use DNS for rcmd queries, but DNS has been enabled with the ip domain-lookup command, use the no ip rcmd domain-lookup command.
This command will turn off DNS lookups for rsh and rcp only. The no ip domain-lookup command takes precedence over the ip rcmd domain-lookup command. If ip domain-lookup is disabled with the no ip domain-lookup command, DNS will be bypassed for rcp and rsh, even if ip rcmd domain-lookup is enabled.
Note
Example
In the following example, DNS security is enabled for rcp and rsh:
ip rcmd domain-lookupRelated Command
A dagger (†) indicates that the command is documented in another chapter.
ip rcmd rcp-enable
To configure the router to allow remote users to copy files to and from the router, use the ip rcmd rcp-enable global configuration command. Use the no form of this command to disable a router that is enabled for rcp.
ip rcmd rcp-enable
no ip rcmd rcp-enableSyntax Description
This command has no arguments or keywords.
Default
To ensure security, the router is not enabled for rcp by default.
Command Mode
Global configuration
Usage Guidelines
To allow a remote user to execute rcp commands on the router, you must also create an entry for the remote user in the local router's authentication database.
The no ip rcmd rcp-enable command does not prohibit a local user from using rcp to copy system images and configuration files to and from the router.
To protect against undesirable users copying the system image or configuration files without consent, the router is not enabled for rcp by default.
Note
Example
The following example shows how to enable the router for rcp:
rcp-enableRelated Command
ip rcmd remote-host
To allow remote users to execute commands on the router using rsh or rcp, use the ip rcmd remote-host global configuration command to create an entry for the remote user in a local authentication database. Use the no form of this command to remove an entry for a remote user from the local authentication database.
ip rcmd remote-host local-username {ip-address | host} remote-username [enable [level]]
no ip rcmd remote-host local-username {ip-address | host} remote-username [enable [level]]Syntax Description
Command Mode
Global configuration
Usage Guidelines
A TCP connection to a router is established using an IP address. Using the host name is valid only when you are initiating an rcp or rsh command from a local router. The host name is converted to an IP address using DNS or host-name aliasing.
To allow a remote user to execute rcp or rsh commands on a local router, you must create an entry for the remote user in the local router's authentication database. You must also enable the router to act as an rsh or rcp server.
To enable the router to act as an rsh server, issue the ip rcmd rsh-enable command. To enable the router to act as an rcp server, issue the ip rcmd rcp-enable command.The router cannot act as a server for either of these protocols unless you explicitly enable the capacity.
A local authentication database, which is similar in concept and use to a UNIX .rhosts file, is used to enforce security on the router through access control. Each entry that you configure in the authentication database identifies the local user, the remote host, and the remote user. To permit a remote user of rsh to execute commands in privileged EXEC mode or to permit a remote user of rcp to copy files to the router, specify the enable keyword and level. For information on the enable level, refer to the privilege level global configuration command in the Security Module Command Reference.
An entry that you configure in the router authentication database differs from an entry in a UNIX .rhost file in the following aspect. Because the .rhosts file on a UNIX system resides in the home directory of a local user account, an entry in a UNIX .rhosts file does not need to include the local username; the local username is determined from the user account. To provide equivalent support on a router configured, specify the local username along with the remote host and remote username in each authentication database entry that you configure.
For a remote user to be able to execute commands on the router in its capacity as a server, the local username, host address or name, and remote username sent with the remote client request must match values configured in an entry in the local authentication file.
A remote client host should be registered with DNS. The router software uses DNS to authenticate the remote host's name and address. Because DNS can return several valid IP addresses for a host name, the router software checks the address of the requesting client against all of the IP addresses for the named host returned by DNS. If the address sent by the requester is considered invalid, that is, it does not match any address listed with DNS for the host name, then the router software will reject the remote-command execution request.
Note that if no DNS servers are configured for the router, then the router cannot authenticate the host in this manner. In this case, the router software will send a broadcast request to attempt to gain access to DNS services on another server. If DNS services are not available, you must use the no ip domain-lookup command to disable the router's attempt to gain access to a DNS server by sending a broadcast request.
If DNS services are not available and, therefore, you bypass the DNS security check, the router software will accept the request to remotely execute a command only if all three values sent with the request match exactly the values configured for an entry in the local authentication file.
Note
Example
The following example allows the remote user netadmin3 on a remote host with the IP address 131.108.101.101 to execute commands on router1 using the rsh or rcp protocol. For rsh, user netadmin3 is allowed to execute commands in privileged EXEC mode.
ip rcmd remote-host router1 131.108.101.101 netadmin3 enableRelated Commands
A dagger (†) indicates that the command is documented in another chapter.
ip rcmd rcp-enable
ip rcmd rsh-enable
no ip domain-lookup †ip rcmd remote-username
To configure the remote username to be used when requesting a remote copy using rcp, use the ip rcmd remote-username global configuration command. To remove from the configuration the remote username, use the no form of this command.
ip rcmd remote-username username
no ip rcmd remote-username username
CautionThe remote username must be associated with an account on the destination server.
Syntax Description
Default
If you do not issue this command, the router software sends the remote username associated with the current TTY process, if that name is valid, for rcp copy commands. For example, if the user is connected to the router through Telnet and the user was authenticated through the username command, then the router software sends that username as the remote username.
Command Mode
Global configuration
Usage Guidelines
The rcp protocol requires that a client send the remote username on an rcp request to the server. Use this command to specify the remote username to be sent to the server for an rcp copy request. If the server has a directory structure, as do UNIX systems, all files and images to be copied are searched for or written relative to the directory of the remote user's account.
Note
If the username for the current TTY process is not valid, the router software sends the host name as the remote username. For rcp boot commands, the router software sends the router host name by default.
Note
Example
The following example shows how to use this command:
configure terminalip rcmd remote-username netadmin1^ZRelated Commands
boot network rcp
boot system rcp
copy
copy flash rcp
copy rcp bootflash
copy rcp flash
copy rcp running-config
copy rcp startup-config
copy running-config rcp
copy startup-config rcpip rcmd rsh-enable
To configure the router to allow remote users to execute commands on the router using rsh, use the ip rcmd rsh-enable global configuration command. Use the no form of this command to disable a router that is enabled for rsh.
ip rcmd rsh-enable
no ip rcmd rsh-enableSyntax Description
This command has no arguments or keywords.
Default
To ensure security, the router is not enabled for rsh by default.
Command Mode
Global configuration
Usage Guidelines
Use this command to enable the router to receive rsh requests from remote users. In addition to issuing this command, to allow a remote user to execute rsh commands on the router, you must create an entry for the remote user in the local router's authentication database.
The no ip rcmd rsh-enable command does not prohibit a local user of the router from executing a command on other routers and UNIX hosts on the network using rsh.
Note
Example
The following example shows how to enable the router as an rsh server:
ip rcmd rsh-enableRelated Command
microcode
To specify the location of the microcode you want to download from Flash memory into the writable control store (WCS) on a Cisco 7000 series or Cisco 7500 series, use the microcode global configuration command.
microcode interface [flash filename| rom | system] (Cisco 7000 series only)
no microcode interface [flash filename| rom | system] (Cisco 7000 series only)microcode interface [flash file_id | system] (Cisco 7500 series only)
no microcode interface [flash file_id | system] (Cisco 7500 series only)Syntax Description
Default
The default is to load from the microcode bundled in the system image.
Command Mode
Global configuration
Examples
In the following example, all FIP cards will use their onboard ROM microcode:
microcode fip romIn the following example, all FIP cards will be loaded with the microcode found in Flash memory file fip.v141-7 when the system is booted, when a card is inserted or removed, or when the microcode reload global configuration command is issued. The configuration is then written to the startup configuration file.
microcode fip flash fip.v141-7^Z> copy running-config startup-configRelated Command
microcode reload
To signal to the Cisco 7000 series that all microcode configuration commands have been entered and the processor cards should be reloaded, use the microcode reload global configuration command.
microcode reload
Syntax Description
This command has no arguments or keywords.
Command Mode
Global configuration
Example
In the following example, all controllers are reset, the specified microcode is loaded, and the CxBus complex is reinitialized according to the microcode configuration commands that have been written to memory:
microcode reloadRelated Command
mop device-code
To identify the type of device sending MOP sysid messages and request program messages, use the mop device-code global configuration command. Use the no form of this command to set the identity to the default value.
mop device-code {cisco | ds200}
no mop device-code {cisco | ds200}Syntax Description
Default
Cisco device code
Command Mode
Global configuration
Usage Guidelines
The sysid messages and request program messages use the identity information indicated by this command.
Example
The following example identifies a DECserver 200 device as sending MOP sysid and request program messages:
mop device-code ds200Related Command
A dagger (†) indicates that the command is documented in another chapter.
mop retransmit-timer
To configure the length of time the router waits before retransmitting boot requests to a MOP server, use the mop retransmit-timer global configuration command. Use the no form of this command to reinstate the default value.
mop retransmit-timer seconds
no mop retransmit-timerSyntax Description
seconds
Sets the length of time, in seconds, that the router waits before retransmitting a message. The value is a number from 1 to 20.
Default
4 seconds
Command Mode
Global configuration
Usage Guidelines
By default, when the router transmits a request that requires a response from a MOP boot server and the server does not respond, the message will be retransmitted after 4 seconds. If the MOP boot server and router are separated by a slow serial link, it may take longer than 4 seconds for the router to receive a response to its message. Therefore, you might want to configure the router to wait longer than 4 seconds before retransmitting the message if you are using such a link.
Example
In the following example, if the MOP boot server does not respond within 10 seconds after the router sends a message, the server will retransmit the message:
mop retransmit-timer 10Related Commands
A dagger (†) indicates that the command is documented in another chapter.
mop device-code
mop retries
mop enabled†mop retries
To configure the number of times a router will retransmit boot requests to a MOP server, use the mop retries global configuration command. Use the no form of this command to reinstate the default value.
mop retries count
no mop retriesSyntax Description
count
Indicates the number of times a router will retransmit a MOP boot request. The value is a number from 3 to 24.
Default
8 times
Command Mode
Global configuration
Example
In the following example, the router will attempt to retransmit a message to an unresponsive host 11 times before declaring a failure:
mop retries 11Related Commands
A dagger (†) indicates that the command is documented in another chapter.
mop device-code
mop retransmit-timer
mop enabled †o
To list the value of the boot field (bits 0-3) in the configuration register, use the ROM monitor o command. To reset the value of the boot field so that the router boots from ROM, use the ROM monitor o/r command.
o
o/rSyntax Description
This command has no arguments or keywords.
Default
Refer to the appropriate hardware installation guide for default values.
Command Mode
ROM monitor
Usage Guidelines
To get to the ROM monitor prompt at a Cisco 2000, Cisco 3000, Cisco 4000, or Cisco 7000 series, use the reload EXEC command if the configuration register has a boot value of 0. (For systems with a software configuration register, a value can be included on the o/r command line.) Use the i command in conjunction with the o/r command to initialize the router. (The i command is documented in the Hardware Installation and Maintenance publication for your product.) The o/r command resets the configuration register to 0x141, which disables the Break key, ignores the NVRAM configuration, and boots the default system image from ROM.
Examples
The following is an example of the o command:
> oBit# Configuration register option settings:15 Diagnostic mode disabled14 IP broadcasts do not have network numbers13 Do not boot default ROM software if network boot fails12-11 Console speed is 9600 baud10 IP broadcasts with ones09 Do not use secondary bootstrap08 Break enabled07 OEM disabled06 Ignore configuration disabled03-00 Boot to ROM monitor>The following is an example of the o/r and i commands used to reset and boot the default system image from ROM:
> o/r> iRelated Command
partition flash
To separate Flash memory into two partitions, use the partition flash global configuration command. Use the no form of this command to undo partitioning, and restore Flash memory to one partition.
partition flash partitions [size1 size2]
no partition flashSyntax Description
partitions
Number of partitions in Flash memory. Can be 1 or 2.
size1
(Optional) Size of the first partition in megabytes.
size2
(Optional) Size of the second partition in megabytes.
Default
Flash memory consists of one partition.
If this command is entered but partition size is not specified, two partitions of equal size will be created.
Command Mode
Global configuration
Usage Guidelines
Although the software supports up to eight partitions, current hardware allows only two. To undo partitioning, use either the partition flash 1 or no partition flash command. If one or more files exist in the second partition, you must manually erase the second partition with the erase flash command before reverting to a single partition.
When creating two partitions, you must not truncate a file or cause the spillover of a file into the second partition.
Example
The following example creates two partitions of 4 MB each in Flash memory:
partition flash 2 4 4pwd
To show the current setting of the cd command, use the pwd EXEC command.
pwd
Syntax Description
This command has no arguments or keywords.
Default
This command has no default.
Command Mode
EXEC
Usage Guidelines
Use this command with the Cisco 7000 series and the Cisco 7500 series.
Use the pwd command to show what device is specified as the system's default device by the cd command. For all EXEC commands that have an optional device: argument, the system uses the device specified by the cd command when you omit the optional device: argument.
For example, the dir command contains an optional device: argument and displays a list of files on a Flash memory device. When you omit this device: argument, the system shows a list of the files on the Flash device specified by the cd command.
Examples
The following example shows that the present working device specified by the cd command is slot 0 of the RP or RSP card:
Gouda>pwdslot0Gouda>The following example uses the cd command to change the present working device to slot 1 of the RSP card and then uses the pwd command to display that present working device:
Gouda>cd slot1:Gouda>pwdslot1Gouda>Similarly, the following example uses the cd command on the Cisco 7500 series to change the present working device to bootflash and then uses the pwd command to display that present working device:
Gouda>cd bootflash:Gouda>pwdbootflashGouda>Related Command
reload
To reload the operating system, use the reload EXEC command.
reload [text] | [in [hh:]mm [text]] | [at hh:mm [month day | day month] [text]] | [cancel]
Syntax Description
Command Mode
EXEC
Usage Guidelines
The reload command halts the system. If the system is set to restart on error, it reboots itself. Use the reload command after configuration information is entered into a file and saved to the startup configuration.
You cannot reload from a virtual terminal if the system is not set up for automatic booting. This prevents the system from dropping to the ROM monitor and thereby taking the system out of the remote user's control.
If you modify your configuration file, the system prompts you to save the configuration. During a save operation, the system asks you if you want to proceed with the save if the CONFIG_FILE environment variable points to a startup configuration file that no longer exists. If you say "yes" in this situation, the system goes to setup mode upon reload.
When you schedule a reload to occur at a later time, it must take place within approximately 24 days.
The at keyword can only be used if the system clock has be set on the router (either through NTP, the hardware calendar, or manually). The time is relative to the configured time zone on the router. To schedule reloads across several routers to occur simultaneously, the time on each router must be synchronized with NTP.
To display information about a scheduled reload, use the show reload command.
Examples
The following example illustrates how to use the reload command to immediately reload the software on the router:
router# reloadThe following example illustrates how to use the reload command to reload the software on the router in 10 minutes:
router# reload in 10router# Reload scheduled for 11:57:08 PDT Fri Apr 21 1996 (in 10 minutes)Proceed with reload? [confirm]router#The following example illustrates how to use the reload command to reload the software on the router at 1:00 p.m. today:
router# reload at 13:00router# Reload scheduled for 13:00:00 PDT Fri Apr 21 1996 (in 1 hour and 2 minutes)Proceed with reload? [confirm]router#The following example illustrates how to use the reload command to reload the software on the router on April 20 at 2:00 a.m.:
router# reload at 02:00 apr 20router# Reload scheduled for 02:00:00 PDT Sat Apr 20 1996 (in 38 hours and 9 minutes)Proceed with reload? [confirm]router#The following example illustrates how to use the reload command to cancel a pending reload:
router# reload cancel%Reload cancelled.Related Commands
copy running-config startup-config
show reloadrsh
To execute a command remotely on a remote rsh host, use the rsh privileged EXEC command.
rsh {ip-address | host} [/user username] remote-command
Syntax Description
Default
If you do not specify the /user keyword and argument, the router sends a default remote username. As the default value of the remote username, the router software sends the username associated with the current TTY process, if that name is valid. For example, if the user is connected to the router through Telnet and the user was authenticated through the username command, then the router software sends that username as the remote username. If the TTY username is invalid, the router software uses the router host name as the both the remote and local usernames.
Note
Command Mode
Privileged EXEC
Usage Guidelines
Use the rsh command to execute commands remotely. The host on which you remotely execute the command must support the rsh protocol, and the .rhosts files on the rsh host must include an entry that permits you to remotely execute commands on that host.
For security reasons, the router software does not default to a remote login if no command is specified, as does UNIX. Instead, the router provides Telnet and connect services that you can use rather than rsh.
Example
The following command specifies that user sharon attempts to remotely execute the UNIX ls command with the -a argument on the remote host mysys.cisco.com . The command output resulting from the remote execution follows the command example:
Router1# rsh mysys.cisco.com /user sharon ls -a....alias.cshrc.emacs.exrc.history.login.mailrc.newsrc.oldnewsrc.rhosts.twmrc.xsessionjazzservice compress-config
To compress configuration files on the Cisco 7000 series, Cisco 4000 series, Cisco 3000, and AGS+ routers, which have NVRAM, use the service compress-config global configuration command. To disable compression, use the no form of this command.
service compress-config
no service compress-configSyntax Description
This command has no arguments or keywords.
Default
Disabled
Command Mode
Global configuration
Usage Guidelines
If the file compression completes successfully, the following message is displayed:
Compressing configuration from configuration-size to compressed-size[OK]If the boot ROMs do not recognize a compressed configuration, the following message is displayed:
Boot ROMs do not support NVRAM compression Config NOT written to NVRAMIf the file compression fails, the following message is displayed:
Error trying to compress nvramOne way to determine whether a configuration file will compress enough to fit into NVRAM is to use a text editor to enter the configuration, then use the UNIX compress command to check the compressed size. To get a closer approximation of the compression ratio, use the UNIX command compress -b12.
Once the configuration file has been compressed, the router functions normally. A show startup-config command would uncompress the configuration before displaying it. At boot time, the system would recognize that the configuration file was compressed, uncompress it, and proceed normally.
To disable compression of the configuration file, enter configuration mode and specify the no service compress-config command. Then enter the copy running-config startup-config command. The router displays an OK message if it is able to successfully write the uncompressed configuration to NVRAM. Otherwise, the router displays an error message indicating that the configuration is too large to store. If the configuration file is larger than the physical NVRAM, the following message is displayed:
##Configuration too large to fit uncompressed in NVRAM Truncate configuration? [confirm]To truncate and save the configuration, type Y. To not truncate and not save the configuration, type N.
Example
In the following example, the configuration file is compressed:
service compress-configRelated Command
service config
To enable autoloading of configuration files from a network server, use the service config global configuration command. Use the no form of this command to restore the default.
service config
no service configSyntax Description
This command has no arguments or keywords.
Default
Disabled, except on systems without NVRAM or with invalid or incomplete information in NVRAM. In these cases, autoloading of configuration files from a network server is enabled automatically.
Command Mode
Global configuration
Usage Guidelines
Usually, the service config command is used in conjunction with the boot host or boot network command. You must enter the service config command to enable the router to automatically configure the system from the file specified by the boot host or boot network command.
The service config command can also be used without the boot host or boot network command. If you do not specify host or network configuration filenames, the router uses the default configuration files. The default network configuration file is network-confg. The default host configuration file is host-confg, where host is the host name of the router. If the router cannot resolve its host name, the default host configuration file is router-confg.
Example
In the following example, the router is configured to autoload the default host configuration file:
boot hostservice configRelated Commands
show async-bootp
To display the extended BOOTP request parameters that have been configured for asynchronous interfaces, use the show async-bootp privileged EXEC command.
show async-bootp
Syntax Description
This command has no arguments or keywords.
Command Mode
Privileged EXEC
Sample Display
The following is a sample output of the show async-bootp command:
Router# show async-bootpThe following extended data will be sent in BOOTP responses:bootfile (for address 128.128.1.1) "pcboot"bootfile (for address 131.108.1.111) "dirtboot"subnet-mask 255.255.0.0time-offset -3600time-server 128.128.1.1describes significant fields shown in the display.
Table 3-4 Show Async-BOOTP Field Descriptions
Related Command
show boot
To display the contents of the BOOT environment variable, the name of the configuration file pointed to by the CONFIG_FILE environment variable, and the contents of the BOOTLDR environment variable, use the show boot EXEC command.
show boot
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
Use this command with the Cisco 7000 series and the Cisco 7500 series. The show boot command allows you to view the current settings for the following environment variables:
•
•
•
The BOOT environment variable specifies a list of bootable images on various devices. The CONFIG_FILE environment variable specifies the configuration file used during system initialization. The BOOTLDR environment variable specifies the Flash device and filename containing the rxboot image that ROM uses for booting. You set these environment variables with the boot system, boot config, and boot bootldr commands, respectively.
Sample Display
The following is sample output from the show boot command:
Cyclone#show bootBOOT variable =CONFIG_FILE variable = nvram:Current CONFIG_FILE variable = slot0:router-configBOOTLDR variable not existConfiguration register is 0x0Cyclone#In the sample output, the BOOT environment variable contains a null string. That is, a list of bootable images is not specified.
The CONFIG_FILE environment variable points to the configuration file in NVRAM as the startup (initialization) configuration. The run-time value for the CONFIG_FILE environment variable points to the router-config file on the Flash memory card inserted in the first slot of the RSP card. That is, during the run-time configuration, you have modified the CONFIG_FILE environment variable using the boot config command, but you have not saved the run-time configuration to the startup configuration. To save your run-time configuration to the startup configuration, use the copy running-config startup-config command. If you do not save the run-time configuration to the startup configuration, then the system reverts back to the saved CONFIG_FILE environment variable setting for initialization information upon reload. In this sample, the system reverts back to NVRAM for the startup configuration file.
The BOOTLDR environment variable does not yet exist. That is, you have not created the BOOTLDR environment variable using the boot bootldr command.
Related Commands
boot bootldr
boot config
boot system
show versionshow bootflash
To verify boot Flash memory on the Cisco 4500, use the show bootflash EXEC command.
show bootflash
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
You can use this command only on routers that have two banks of Flash: one bank for the boot image and the second bank for the system image.
The show bootflash command displays the type of boot Flash memory present, any files that may currently exist in boot Flash memory, and the amount of boot Flash memory used and remaining.
Sample Display
The following is sample output from the show bootflash command:
Router# show bootflashBoot flash directory:File name/status1 c4500-xboot[1387336 bytes used, 2806968 bytes available]describes the fields shown in the output.
Table 3-5 Show Bootflash Field Descriptions
show configuration
The show startup-config command replaces this command. Refer to the description of the
show startup-config command for more information.show file
To display the configuration stored in a specified file, use the show file EXEC command.
show file [device:] filename
Syntax Description
Command Mode
EXEC
Usage Guidelines
Use this command for the Cisco 7000 series and the Cisco 7500 series. When showing the configuration, the router informs you whether the displayed configuration is a complete configuration or a distilled version. A distilled configuration is one that does not contain access lists.
Sample Display
The following is sample output from the show file command:
Router#show file slot0:router-configUsing 534 out of 129016 bytes!version 10.3!hostname Cyclops!enable-password xxxxservice pad!boot system dross-system 131.108.13.111boot system dross-system 131.108.1.111!exception dump 131.108.13.111!no ip ipname-lookup!decnet routing 13.1decnet node-type areadecnet max-address 1023!interface Ethernet 0ip address 131.108.1.1 255.255.255.0ip helper-address 131.120.1.0ip accountingip gdpdecnet cost 3!ip domain-name CISCO.COMip name-server 255.255.255.255!endRelated Commands
show flash
To display the layout and contents of Flash memory, use one of the following show flash EXEC commands:
show flash [all | chips | detailed | err | partition number [all | chips | detailed | err] | summary]
show flash [all | chips | filesys] [device:] (Cisco 7000 series PCMCIA slot and Cisco 7500 series only)
Syntax Description
Command Mode
EXEC
Usage Guidelines
The show flash command displays the type of Flash memory present, any files that might currently exist in Flash memory, and the amounts of Flash memory used and remaining.
For the Cisco 7000 series PCMCIA slot and the Cisco 7500 series, when you specify a PCMCIA slot as the device, the router displays the layout and contents of the Flash memory card inserted in the specified slot of the RP or RSP card. When you omit the device: argument, the router displays the default device specified by the cd command. Use the pwd command to show the current default device.
Sample Displays
The following is sample output from the show flash command on the Cisco 3000 and Cisco 7000 series:
Router# show flash4096K bytes of flash memory sized on embedded flash.File name/status0 ahp4/gs7-k1 micro/eip1-02 micro/sp1-33 micro/trip1-14 micro/hip1-05 micro/fip1-16 fsipucode7 spucode8 tripucode9 fipucode10 eipucode11 hipucode12 sipucode13 sp_q160-114 ahp4/sp160-3 [deleted]15 ahp4/sp160-3[682680/4194304 bytes free/total]describes the show flash display fields for the Cisco 3000 series and the internal Flash memory of the Cisco 7000 series.
Table 3-6 Show Flash Field Descriptions
As the display shows, the Flash memory can store and display multiple, independent software images for booting itself or for TFTP server software for other products. This feature is useful for storing default system software. These images can be stored in compressed format (but cannot be compressed by the router).
To eliminate any files from Flash memory (invalidated or otherwise) and free up all available memory space, the entire Flash memory must be erased; individual files cannot be erased from Flash memory.
The following is a sample output from the show flash command on a router that has Flash memory partitioned:
Router# show flashSystem flash directory, partition 1:File Length Name/status1 3459720 master/igs-bfpx.100-4.3[3459784 bytes used, 734520 available, 4194304 total]4096K bytes of processor board System flash (Read Only)System flash directory, partition 2:File Length Name/status1 3459720 igs-kf[3459784 bytes used, 734520 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)The following is a sample output from the show flash all command on the Cisco 3000 series and the internal Flash memory of the Cisco 7000 series. The format of the display is different on different router models. The format of your display might differ.
Router# show flash all4096K bytes of flash memory sized on embedded flash. Chip socket code bytes name 0 U63 89BD 0x040000 INTEL 28F020 1 U62 89BD 0x040000 INTEL 28F020 2 U61 89BD 0x040000 INTEL 28F020 3 U60 89BD 0x040000 INTEL 28F020 4 U48 89BD 0x040000 INTEL 28F020 5 U47 89BD 0x040000 INTEL 28F020 6 U46 89BD 0x040000 INTEL 28F020 7 U45 89BD 0x040000 INTEL 28F020 8 U30 89BD 0x040000 INTEL 28F020 9 U29 89BD 0x040000 INTEL 28F020 10 U28 89BD 0x040000 INTEL 28F020 11 U27 89BD 0x040000 INTEL 28F020 12 U17 89BD 0x040000 INTEL 28F020 13 U16 89BD 0x040000 INTEL 28F020 14 U15 89BD 0x040000 INTEL 28F020 15 U14 89BD 0x040000 INTEL 28F020 Flash file directory: File name/status addr length fcksum ccksum 0 gs7-k 0x12000080 2601100 0x4015 0x4015 1 micro/eip1-0 0x1227B14C 53364 0x0 0x0 2 micro/sp1-3 0x12288200 55418 0x0 0x0 3 micro/trip1-1 0x12295ABC 105806 0x0 0x0 4 micro/hip1-0 0x122AF84C 35528 0x0 0x0 5 micro/fip1-1 0x122B8354 97070 0x0 0x0 6 fsipucode 0x122CFEC4 6590 0x0 0x0 7 spucode 0x122D18C4 55418 0x0 0x0 8 tripucode 0x122DF180 105806 0x0 0x0 9 fipucode 0x122F8F10 97070 0x0 0x0 10 eipucode 0x12310A80 53330 0x60A1 0x60A1 11 hipucode 0x1231DB14 35528 0x0 0x0 12 sipucode 0x1232661C 54040 0x0 0x0 13 sp_q160-1 0x1233974 42912 0x0 0x0 14 ahp4/sp160-3 [deleted] 0x1233E154 55730 0x0 0x0 15 ahp4/sp160-3 0x1234BB48 55808 0x0 0x0 [682680/4194304 bytes free/total]describes the show flash all display fields for the Cisco 3000 series and the Cisco 7000 series internal Flash memory.
Table 3-7 Show Flash All Field Descriptions
In the following example, the security jumper is not installed and you cannot write to Flash memory until the security jumper is installed:
Router# show flash all4096K bytes of flash memory on embedded flash (in RP1).security jumper(12V) is not installed,flash memory is read-only.file offset length name0 0xDCD0 1903892 gs7-k [deleted]1 0x1DEA24 1903912 gs7-k[329908/4194304 bytes free]The following is sample output for the show flash all command on a Cisco 3000 that has Flash memory partitioned:
Router# show flash allSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 3459K 637K 4096K Read Only RXBOOT-FLH2 4096K 3224K 872K 4096K Read/Write DirectSystem flash directory, partition 1:File Length Name/statusaddr fcksum ccksum1 3459720 master/igs-bfpx.100-4.30x40 0x3DE1 0x3DE1[3459784 bytes used, 734520 available, 4194304 total]4096K bytes of processor board System flash (Read ONLY)Chip Bank Code Size Name1 1 89A2 1024KB INTEL 28F008SA2 1 89A2 1024KB INTEL 28F008SA3 1 89A2 1024KB INTEL 28F008SA4 1 89A2 1024KB INTEL 28F008SAExecuting current image from System flash [partition 1]System flash directory, partition2:File Length Name/statusaddr fcksum ccksum1 3224008 igs-kf.1000x40 0xEE91 0xEE91[3224072 bytes used, 970232 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name1 2 89A2 1024KB INTEL 28F008SA2 2 89A2 1024KB INTEL 28F008SA3 2 89A2 1024KB INTEL 28F008SA4 2 89A2 1024KB INTEL 28F008SAdescribes the additional fields in the display.
Table 3-8 Show Flash All Fields for Partitioned Flash Memory
The following is sample output for the show flash chips command on a router that has Flash memory partitioned:
Router# show flash chipsSystem flash partition 1:4096K bytes of processor board System flash (Read ONLY)Chip Bank Code Size Name1 1 89A2 1024KB INTEL 28F008SA2 1 89A2 1024KB INTEL 28F008SA3 1 89A2 1024KB INTEL 28F008SA4 1 89A2 1024KB INTEL 28F008SAExecuting current image from System flash [partition 1]System flash partition 2:4096K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name1 2 89A2 1024KB INTEL 28F008SA2 2 89A2 1024KB INTEL 28F008SA3 2 89A2 1024KB INTEL 28F008SA4 2 89A2 1024KB INTEL 28F008SAThe following is sample output for the show flash detailed command on a router that has Flash memory partitioned:
Router# show flash detailedSystem flash directory, partition 1:File Length Name/statusaddr fcksum ccksum1 3224008 igs-kf.1000x40 0xEE91 0xEE91[3224072 bytes used, 970232 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)System flash directory, partition 2:File Length Name/statusaddr fcksum ccksum1 3224008 igs-kf.1000x40 0xEE91 0xEE91[3224072 bytes used, 970232 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)The following is sample output for the show flash err command on a Cisco 3000 that has Flash memory partitioned:
Router# show flash errSystem flash directory, partition 1:File Length Name/status1 37376 master/igs-bfpx.100-4.3 [invalid checksum][37440 bytes used, 4156864 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name erase write1 1 89A2 1024KB INTEL 28F008SA 0 02 1 89A2 1024KB INTEL 28F008SA 0 03 1 89A2 1024KB INTEL 28F008SA 0 04 1 89A2 1024KB INTEL 28F008SA 0 0Executing current image from System flash [partition 1]System flash directory, partition 2:File Length Name/status1 37376 master/igs-bfpx.100-4.3 [invalid checksum][37440 bytes used, 4156864 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name erase write1 2 89A2 1024KB INTEL 28F008SA 0 02 2 89A2 1024KB INTEL 28F008SA 0 03 2 89A2 1024KB INTEL 28F008SA 0 04 2 89A2 1024KB INTEL 28F008SA 0 0The following is sample output for the show flash summary command on a router that has Flash memory partitioned. The partition that indicates a state of Read Only is the partition that is being executed from.
Router# show flash summarySystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write DirectThe following are possible values for Copy-Mode:
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The following sample output shows the show flash command on a Cisco 7000 series PCMCIA slot or a Cisco 7500 series:
Gouda#cd slot1:Gouda#show flash-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. 1 46A11866 2036C 4 746 May 16 1995 16:24:37 testIf you do not use the cd command to change the present working device to slot 1, you can display the same sample output with the following command:
Gouda#show flash slot1:-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. 1 46A11866 2036C 4 746 May 16 1995 16:24:37 testThe following is sample output for the show flash filesys command on a Cisco 7000 series PCMCIA slot or a Cisco 7500 series router:
Cyclops# show flash filesys slot1:-------- F I L E S Y S T E M S T A T U S --------Device Number = 1DEVICE INFO BLOCK: testMagic Number = 6887635 File System Vers = 10000 (1.0)Length = 800000 Sector Size = 20000Programming Algorithm = 4 Erased State = FFFFFFFFFile System Offset = 20000 Length = 7A0000MONLIB Offset = 100 Length = A140Bad Sector Map Offset = 1FFF8 Length = 8Squeeze Log Offset = 7C0000 Length = 20000Squeeze Buffer Offset = 7E0000 Length = 20000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsSqueeze in progressUSAGE INFO:Bytes Used = 36C Bytes Available = 79FC94Bad Sectors = 0 Spared Sectors = 0OK Files = 1 Bytes = 2ECDeleted Files = 0 Bytes = 0Files w/Errors = 0 Bytes = 0The following is sample output for the show flash chips bootflash: command on a Cisco 7500 series:
Gouda#show flash chips bootflash:******** RSP Internal Flash Bank -- Intel Chips ********Flash SIMM Reg: 401Flash SIMM PRESENT2 BanksBank Size = 4MHW Rev = 1Flash Status Registers: Bank 0Intelligent ID Code : 89898989 A2A2A2A2Status Reg: 80808080Flash Status Registers: Bank 1Intelligent ID Code : 89898989 A2A2A2A2Status Reg: 80808080Gouda#In the following example, the present working device is bootflash on a Cisco 7500 series. The sample output displays the show flash all output.
Gouda#cd bootflash:Gouda#show flash all-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. FFFFFFFF 49B403EE 3D0510 21 3736719 May 30 1995 17:47:54 dirt/yanke/m3865328 bytes available (3736848 bytes used)-------- F I L E S Y S T E M S T A T U S --------Device Number = 2DEVICE INFO BLOCK: testMagic Number = 6887635 File System Vers = 10000 (1.0)Length = 800000 Sector Size = 40000Programming Algorithm = 5 Erased State = FFFFFFFFFile System Offset = 40000 Length = 740000MONLIB Offset = 100 Length = A270Bad Sector Map Offset = 3FFFC Length = 4Squeeze Log Offset = 780000 Length = 40000Squeeze Buffer Offset = 7C0000 Length = 40000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsSqueeze in progressUSAGE INFO:Bytes Used = 390510 Bytes Available = 3AFAF0Bad Sectors = 0 Spared Sectors = 0OK Files = 1 Bytes = 390490Deleted Files = 0 Bytes = 0Files w/Errors = 0 Bytes = 0******** RSP Internal Flash Bank -- Intel Chips ********Flash SIMM Reg: 401Flash SIMM PRESENT2 BanksBank Size = 4MHW Rev = 1Flash Status Registers: Bank 0Intelligent ID Code : 89898989 A2A2A2A2Status Reg: 80808080Flash Status Registers: Bank 1Intelligent ID Code : 89898989 A2A2A2A2Status Reg: 80808080Cyclops#show flash chips bootflash:******** RSP Internal Flash Bank -- Intel Chips ********Flash SIMM Reg: 401Flash SIMM PRESENT2 BanksBank Size = 4MHW Rev = 1Flash Status Registers: Bank 0Intelligent ID Code : 89898989 A2A2A2A2Status Reg: 80808080Flash Status Registers: Bank 1Intelligent ID Code : 89898989 A2A2A2A2Status Reg: 80808080show flh-log
To view the system console output generated during the Flash load helper operation, use the show flh-log privileged EXEC command.
show flh-log
Syntax Description
This command has no arguments or keywords.
Command Mode
Privileged EXEC
Usage Guidelines
If you are a remote Telnet user performing the Flash upgrade without a console connection, this command allows you to retrieve console output when your Telnet connection has terminated due to the switch to the ROM image. The output indicates what happened during the download, and is particularly useful if the download fails.
Sample Display
The following is sample output from the show flh-log command:
Router# show flh-log%FLH: abc/igs-kf.914 from 131.108.1.111 to flash ...System flash directory:File Length Name/status1 2251320 abc/igs-kf.914[2251384 bytes used, 1942920 available, 4194304 total]Accessing file 'abc/igs-kf.914' on 131.108.1.111...Loading from 131.108.13.111:Erasing device... ... erasedLoading from 131.108.13.111:- [OK -2251320/4194304 bytes]Verifying checksum... OK (0x97FA)Flash copy took 79292 msecs%FLH: Re-booting system after downloadLoading abc/igs-kf.914 at 0x3000040, size = 2251320 bytes [OK]F3: 2183364+67924+259584 at 0x3000060Restricted Rights LegendUse, duplication, or disclosure by the Government issubject to restrictions as set forth in subparagraph(c) of the Commercial Computer Software - RestrictedRights clause at FAR sec. 52.227-19 and subparagraph(c) (1) (ii) of the Rights in Technical Data and ComputerSoftware clause at DFARS sec. 252.227-7013.cisco Systems, Inc.170 West Tasman DriveSan Jose, California 95134Cisco Internetwork Operating System SoftwareCisco IOS (tm) GS Software (GS7), Version 11.0Copyright (c) 1986-1995 by cisco Systems, Inc.Compiled Tue 06-Dec-94 14:01 by smithImage text-base: 0x00001000, data-base: 0x005A9C94cisco 2500 (68030) processor (revision 0x00) with 4092K/2048K bytes ofmemory.Processor board serial number 00000000DDN X.25 software, Version 2.0, NET2 and BFE compliant.ISDN software, Version 1.0.Bridging software.Enterprise software set supported. (0x0)1 Ethernet/IEEE 802.3 interface.2 Serial network interfaces.--More--1 ISDN Basic Rate interface.32K bytes of non-volatile configuration memory.4096K bytes of processor board System flash (Read ONLY)show microcode
To show the microcode bundled into a 7000 series system, use the show microcode EXEC command.
show microcode
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Sample Display
The following is sample output from the show microcode command:
Router# show microMicrocode bundled in systemCard Microcode Target Hardware DescriptionType Version Version---- --------- --------------- -----------SP 2.3 11.x SP version 2.3EIP 1.1 1.x EIP version 1.1TRIP 1.2 1.x TRIP version 1.2FIP 1.4 2.x FIP version 1.4HIP 1.1 1.x HIP version 1.1SIP 1.1 1.x SIP version 1.1FSIP 1.1 1.x FSIP version 1.1show reload
To display the reload status on the router, use the show reload EXEC command.
show reload
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
You can use the show reload command to display a pending software reload. To cancel the reload, use the reload cancel privileged EXEC command.
Sample Display
The following sample output from the show reload command shows that a reload is schedule for 12:00 a.m. (midnight) on Saturday, April 20:
Router# show reloadReload scheduled for 00:00:00 PDT Sat April 20 1996 (in 12 hours and 12 minutes)Router#show running-config
To display the configuration information currently running on the terminal, use the show running-config EXEC command. This command replaces the write terminal command.
show running-config
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
Use this command in conjunction with the show startup-config command to compare the information in running memory to the information stored in NVRAM or in a location specified by the CONFIG_FILE environment variable. On the Cisco 7000 series or Cisco 7500 series, this variable specifies the configuration file used for initialization (startup). Use the boot config command in conjunction with the copy running-config startup-config command to set the CONFIG_FILE environment variable.
Example
The following example illustrates how to display the running configuration:
show running-configBuilding configuration...Related Commands
boot config
configure
copy running-config startup-config
show startup-configshow startup-config
To display the contents of NVRAM (if present and valid) or to show the configuration file pointed to by the CONFIG_FILE environment variable, use the show startup-config EXEC command. This command replaces show configuration command.
show startup-config
Syntax Description
This command has no arguments or keywords.
Command Mode
EXEC
Usage Guidelines
NVRAM stores the configuration information on the network server in text form as configuration commands. For all platforms except the Cisco 7000 series and the Cisco 7500 series, the show startup-config command shows the version number of the software used when you last executed the copy running-config startup-config command.
For the Cisco 7000 series and the Cisco 7500 series, the show startup-config command shows the configuration file specified by the CONFIG_FILE environment variable. The router informs you whether the displayed configuration is a complete configuration or a distilled version. A distilled configuration is one that does not contain access lists. If the CONFIG_FILE environment variable does not exist or is not valid, the router displays the NVRAM configuration (if it is a valid, complete configuration).
Sample Displays
The following is sample output from the show startup-config command. It shows the router displaying the contents of NVRAM.
Router# show startup-configUsing 5057 out of 32768 bytes!version 10.3!enable-password xxxxservice pad!boot system dross-system 131.108.13.111boot system dross-system 131.108.1.111!exception dump 131.108.13.111!no ip ipname-lookup!decnet routing 13.1decnet node-type areadecnet max-address 1023!interface Ethernet 0ip address 131.108.1.1 255.255.255.0ip helper-address 131.120.1.0ip accountingip gdpdecnet cost 3!ip domain-name CISCO.COMip name-server 255.255.255.255!endThe following is partial sample output from the show startup-config command when the configuration file has been compressed:
Router# show startup-configUsing 21542 out of 65536 bytes, uncompressed size = 142085 bytes!version 9.22service compress-config!hostname rose!boot system flash gs7-k.sthormod_cleanboot system rom
