Basic Cisco IOS Divice Configuration Step by Step.

 

Step 1: Access the Command Line Interface (CLI)

Connect to the device using a terminal emulation program such as PuTTY or SecureCRT.

// Example for console connection PuTTY or terminal emulator settings: - Connection type: Serial - Serial line: COMx (replace x with the appropriate COM port) - Speed: 9600

Step 2: Enter Privileged EXEC Mode

Enter privileged exec mode to have access to all commands on the router.

Router> enable

Step 3: Enter Global Configuration Mode

Enter global configuration mode to make global changes to the router.

Router# configure terminal

Step 4: Set the Hostname

Assign a name to the router to identify it easily.

Router(config)# hostname YourRouterName

Step 5: Secure Access with Passwords

Set a password for privileged exec mode and console access.

Router(config)# enable secret YourEnablePassword
Router(config)# line console 0
Router(config-line)# password YourConsolePassword
Router(config-line)# login

Step 6: Configure Interfaces

Define IP addresses for interfaces.

Router(config)# interface FastEthernet0/0
Router(config-if)# ip address 192.168.1.1 255.255.255.0
Router(config-if)# no shutdown

Step 7: Configure Routing

Set up basic routing. In this example, we'll configure static routing.

Router(config)# ip route 0.0.0.0 0.0.0.0 next-hop-ip-address

Step 8: Configure DNS Resolution

Specify DNS servers for name resolution.

Router(config)# ip domain-lookup
Router(config)# ip name-server 8.8.8.8

Step 9: Save Configuration

Save your configuration to ensure it persists after a reboot.

Router# write memory

Step 10: Exit Configuration Mode and Verify

Exit configuration mode and verify your settings.

Router(config)# exit
Router# show running-config
Router# show ip interface brief