Configuring the Switch with the CLI-Based Setup Program
This appendix provides a CLI-based setup procedure for a Catalyst 3750-E and Catalyst 3560-E standalone switch or a switch stack. Before connecting the switch to a power source, review the safety warnings in Chapter 2, "Switch Installation."
Accessing the CLI
For an unconfigured switch, you can access the CLI through Express Setup or through the console port.
Accessing the CLI Through Express Setup
You can access the CLI on an unconfigured switch by placing the switch in Express Setup mode and then connecting a switch Ethernet port or the Ethernet management port to the Ethernet port of your PC or workstation. To put the switch into Express Setup mode, follow the steps described in the getting started guide for powering on the switch and using Express Setup.
When the switch is in Express Setup mode, open a Telnet session to the switch by entering the IP address 10.0.0.1. Enter the setup user EXEC command. Enter the information described in the "Entering the Initial Configuration Information" section.
After you have entered the configuration information for the switch, save it to flash memory by using the write memory privileged EXEC command.
Note While in Express Setup mode, the IP address 10.0.0.1 remains active on the switch until you enter the write memory command. You lose the Telnet connection after entering the write memory command.
For more information about using the CLI, see the command reference for this release.
Accessing the CLI Through the Console Port
You can access the CLI on a configured or unconfigured switch by connecting the console port of the switch to your PC or workstation and accessing the switch through a terminal emulation program.
Note For Catalyst 3750-E switches, if you have stacked your switches, connect to the 10/100 Ethernet management port or console port of one of the switches in the stack. The initial configuration for the entire stack can be performed on any switch in the stack.
Connecting to the Console Port
You can use the console port on the switch rear panel to perform the initial configuration as an alternative to using Express Setup.
Follow these steps:
1. Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into the console port on the switch rear panel (Figure 1-7) and to the PC or terminal port.
1. Start the terminal-emulation program on the PC or terminal. The terminal-emulation software, frequently a PC application such as Hyperterminal or ProcommPlus, makes communication between the switch and your PC or terminal possible.
2. Start a terminal-emulation session.
3. Configure the baud rate and character format of the PC or terminal to match these console port default characteristics:
–8 data bits
–1 stop bit
–None (flow control)
4. Power on the switch as described in the switch getting started guide and in the "Installing an AC-Power Supply" section on page 3-3.
5. The PC or terminal displays the bootloader sequence. Press Enter to display the setup prompt. Follow the steps described in the "Entering the Initial Configuration Information" section.
Entering the Initial Configuration Information
To set up the switch, you need to complete the setup program, which runs automatically after the switch is powered on. You must assign an IP address and other configuration information necessary for the switch to communicate with the local routers and the Internet. This information is also required if you plan to use the device manager or Cisco Network Assistant to configure and manage the switch.
You will need this information from your network administrator before you complete the setup program:
•Switch IP address
•Subnet mask (IP netmask)
•Default gateway (router)
•Enable secret password
Completing the Setup Program
If your switches are stacked and there are multiple console connections to individual switches in the stack, the initial setup dialog appears at the console where you first press Enter.
Follow these steps to complete the setup program and to create an initial configuration for the switch:
Step 1 Enter Yes at the following two prompts.
Would you like to enter the initial configuration dialog? [yes/no]: yes
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets ''.
Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system.
Would you like to enter basic management setup? [yes/no]: yes
Step 2 Enter a host name for the switch, and press Return.
On a command switch, the host name is limited to 28 characters; on a member switch to 31 characters. Do not use -n, where n is a number, as the last character in a host name for any switch.
Enter host name [Switch]: host_name
Step 3 Enter an enable secret password, and press Return.
The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive, allows spaces, but ignores leading spaces. The secret password is encrypted, and the enable password is in plain text.
Enter enable secret: secret_password
Step 4 Enter an enable password, and press Return.
Enter enable password: enable_password
Step 5 Enter a virtual terminal (Telnet) password, and press Return.
The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores leading spaces.
Enter virtual terminal password: terminal-password
Step 6 (Optional) Configure Simple Network Management Protocol (SNMP) by responding to the prompts. You can also configure SNMP later through the CLI, the device manager, or the Network Assistant application. To configure SNMP later, enter no.
Configure SNMP Network Management? [no]: no
Step 7 Enter the interface name (physical interface or VLAN name) of the interface that connects to the management network, and press Return. For this release, always use vlan1 as that interface.
Enter interface name used to connect to the
management network from the above interface summary: vlan1
Step 8 Configure the interface by entering the switch IP address and subnet mask and pressing Return. The IP address and subnet masks shown are examples.
Configuring interface vlan1:
Configure IP on this interface? [yes]: yes
IP address for this interface: 10.4.120.106
Subnet mask for this interface [255.0.0.0]: 255.0.0.0
Step 9 Enter Y to configure the switch as the cluster command switch. Enter N to configure it as a member switch or as a standalone switch.
If you enter N, the switch appears as a candidate switch in the Network Assistant GUI. You can configure the switch as a command switch later through the CLI, the device manager, or the Network Assistant application. To configure it later, enter no.
Would you like to enable as a cluster command switch? [yes/no]: no
You have now completed the initial configuration of the switch, and the switch displays its initial configuration. This is an example of output that appears:
The following configuration command script was created:
enable secret 5 $1$Ulq8$DlA/OiaEbl90WcBPd9cOn1
enable password enable_password
ip address 10.4.120.106 255.0.0.0
Step 10 These choices appear:
 Go to the IOS command prompt without saving this config.
 Return back to the setup without saving this config.
 Save this configuration to nvram and exit.
If you want to save the configuration and use it the next time the switch reboots, save it in nonvolatile
RAM (NVRAM) by selecting option 2.
Enter your selection :2
Make your selection, and press Return.
After you complete the setup program, the switch can run the default configuration that you created. If you want to change this configuration or want to perform other management tasks, use Cisco Network Assistant, the Cluster Management Suite (CMS), or another management tool for further configuration.