Save and Recover Your Router Configuration
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Introduction
This document explains how to save and recover the configuration for
your Cisco router. If you want to configure your router for the first time,
refer to Configure Your
Router with Security Device Manager.
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Requirements
You need the following items to use this document:
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You must have completed the
Site
Survey and configured the router.
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TFTP server software. If your PC does not have TFTP server software
installed, refer to Set Up a TFTP
Server for further instructions.
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Approximately 1 hour of network downtime
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A crossover cable. For further assistance refer to
Cable
Descriptions.
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A console cable. For further assistance refer to
Cable
Descriptions.
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A PC with a Pentium III or higher processor
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Windows 98 (second edition) or later
Note: Windows 2000 Advanced Server is not supported.
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One of these web browsers:
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Netscape version 7.1 or later.
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Internet Explorer version 5.5 or later.
Note: If you are using the Java plugin, you need to use SUN Java
Runtime Environment (JRE) version 1.4.2_05. For information about how to update
your version of JRE refer to java.sun.com
.
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Save Your Configuration
Launch SDM
To launch SDM, open http://
router
IP address in a web browser. Use the router IP address you entered
in the LAN Addressing Worksheet (L6A). For further information about how to
launch SDM, refer to
Configure
Your Router with Security Device Manager.
Save the Running Configuration to Your PC
If you want to save a backup copy of your router configuration to your
PC, follow these steps:
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Click File > Save Running Config to PC.
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Browse to your TFTP download directory and open the
folder.
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Change the file extension from .txt to
.cfg.
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Click Save.
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Click File > Exit to exit
SDM.
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Load an Existing Configuration
To load an existing configuration onto your router, follow these
steps:
Note: This procedure will disrupt your network and may disrupt your
connection to the router.
Identify Configuration to Load
Locate the configuration file that you want to upload to the router and
verify that the configuration file is in the TFTP download folder of the
PC.
Connect to the Router
To connect to your router, follow these steps:
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Open a terminal connection to your router. For more information
about how to create a terminal connection, refer to
Create a
HyperTerminal Connection.
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Log into the router. The default login is username cisco, password
cisco. Otherwise, use the administrator login and password you entered in the
Internet Worksheet (B10 and B11).
Username: cisco
Password:
Note: If you do not know the password for your router, refer to
Recover
the Password for your Router.
Set Router IP Address
To set the IP address on the router, follow these
steps:
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Type enable and press
Enter to access the privileged mode. If you have set an enable
password, use the password that you entered in the Internet Worksheet
(B12).
Router> enable
Router#
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Type configure terminal and press
Enter to access configuration mode.
Router#configure terminal
Router(config)#
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Type interface FastEthernet0 and press
Enter to configure the Ethernet interface.
Note: The name of the Ethernet interface varies with some router
models. Review the table to confirm the name for the Ethernet interface on your
router. For example, if your router interface lists Ethernet0, enter the
command interface Ethernet0.
Router Model
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First Ethernet Interface
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SOHO
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Ethernet0
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800 Series
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Ethernet0
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1760
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FastEthernet0/0
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1700 Series
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FastEthernet0
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1800
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FastEthernet0/0
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2600 Series
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FastEthernet0/0
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2800
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FastEthernet0/0
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Router(config-if)#interface FastEthernet0
Router(config-if)#
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Type ip address 10.0.0.1 255.255.255.0
and press Enter.
Router(config-if)#ip address 10.0.0.1 255.255.255.0
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Type no shutdown and press
Enter to make the interface active.
Router(config-if)#no shutdown
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Type end and press
Enter to leave configuration mode.
Router(config)#end
Router#
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Type write memory and press
Enter to save the configuration.
Router(config)#write memory
Building configuration...
[OK]
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Leave the terminal session open and minimize the terminal
window.
Update the PC IP Address
To verify the connection between your PC and the router, follow these
steps:
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Change your PC IP address to 10.0.0.1 with subnet mask
255.255.255.0. To change your PC IP address, go to Control Panel >
Network and Dial-Up Connections > TCP/IP Properties. For further
information about how to configure an IP address on your PC, refer to
Configure
an IP Address on Your PC.
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Connect the Ethernet interface of your PC to the Ethernet interface
of the router with a crossover cable. For more information about cables, refer
to Cable
Descriptions.
Note: Leave the management cable connected to the console port of the
router.
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Use a ping test to verify that your PC can send traffic to the
router. Go to Start > Run and type command
or cmd to launch a DOS prompt. Type ping 10.0.0.1
and press Enter. The example shows a successful ping
test. For more information about how to do a ping test, refer to
Troubleshoot
Ethernet Connectivity.
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Type exit and press Enter to exit
the command prompt.
Copy the Configuration to the Router
To copy the configuration file to your router, follow these
steps:
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Launch the TFTP Server application.
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Restore the HyperTerminal window.
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Type copy
tftp://10.0.0.2/SDMConfig.cfg flash: and
press Enter. Press Enter again to confirm the
destination filename.
Note: If your configuration file has a different name, use the name of
your configuration file in place of SDMConfig.cfg.
Router#copy tftp://10.0.0.2/SDMConfig.cfg flash:
Destination filename [config.text]?
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The router displays a message similar to the example when it
accesses the file:
Accessing tftp://10.0.0.2/SDMConfig.cfg...
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If the router prompts you to erase flash, type n
so that you do NOT erase flash and press Enter.
Erase flash: before copying? [confirm]n
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The router displays a message similar to the example when the copy
begins:
Loading //tftp-root/SDMConfig.cfg from 10.0.0.2 (via FastEthernet0): !!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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When the copy is complete, type copy
flash:SDMConfig.cfg start and press
Enter. Press Enter again to confirm the
destination filename.
Note: If your configuration file has a different name, replace
SDMConfig.cfg with the name of your configuration file.
Router#copy flash:SDMConfig.cfg start
Destination filename [startup-config]?
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Type reload and press
Enter to reboot the router with the new configuration. Press
Enter again to confirm.
Router#reload
Proceed with reload? [confirm]
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Change your PC settings to obtain an IP address automatically from
the router. Go to Control Panel > Network and Dial-Up Connections
> TCP/IP Properties and choose Obtain an IP Address
Automatically. For more detailed instructions on how to set your PC to
obtain an IP address automatically, refer to
Configure
an IP Address on Your PC.
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Close the TFTP Server application.
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Next Step
You have now loaded a configuration on your router. If you want to make
changes to the configuration on your router, refer to
Configure
Your Router with Security Device Manager.
To make further changes to your router, refer to the
Router Support
Page.
To configure other devices in your network, refer to the
Configuration
Overview Page.
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Troubleshoot the Procedure
Problem
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Cause(s) and Suggested Solution(s)
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I do not see the SDM login prompt.
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The router does not accept my login.
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If you are unable to log in, you need to create a privileged
username and password for your router. Refer to
Download
Security Device Manager for further assistance.
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I loaded the new configuration but I cannot reconnect to the
router with SDM.
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Refer to
Configure
your Router with Security Device Manager.
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Related Information
