Lab Primary Setup

Purpose

This procedure defines the initial configuration of a Cisco switch for lab use. It ensures secure access, prevents unnecessary interruptions, and sets a baseline identity for the device.

1. Access the Device

Connect to the switch via the console cable and open a terminal emulator (e.g., PuTTY, Tera Term).

2. Enter Global Configuration Mode

Switch> enable

Switch# configure terminal

3. Disable DNS Lookup

Prevents delays when mistyped commands are entere

Switch(config)# no ip domain-lookup

4. Set Hostname

Define a unique device name.

Switch(config)# hostname LAB-SW1

5. Configure Console Line

Require login with local credentials.

Enable logging synchronization to prevent command interruptions.

Set exec-timeout to 0 0 (no timeout for lab use).

LAB-SW1(config)# line console 0

LAB-SW1(config-line)# login local

LAB-SW1(config-line)# logging synchronous

LAB-SW1(config-line)# exec-timeout 0 0

LAB-SW1(config-line)# exit

6. Create Local User

Set a username and password for console login.

LAB-SW1(config)# username admin privilege 15 secret MyLabPass123

7. Configure Enable Secret

Set a secure password for privileged EXEC mode.

LAB-SW1(config)# enable secret StrongEnablePass456

8. Save Configuration

LAB-SW1# write memory

LAB-SW1# copy running-config startup-config

Your lab switch is now secured with a hostname, console login, and enable password.

Verification

Disconnect and reconnect to console.

Confirm username + password required for login.

Test entering enable mode with the secret password.

Verify hostname is correct.

Test that mistyped commands don’t trigger DNS lookups.

LAB-SW1> show running-config | include hostname

LAB-SW1> show running-config | section line con 0

LAB-SW1> show running-config | include username

LAB-SW1> show running-config | include enable secret

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