How to Configure IP Address on Cisco Routers – CCNA

In this Blog Post, I am sharing CCNA Lab Tutorial on ” Configuring and Enabling IP Addressing on Cisco Router Interfaces”.

Different Cisco Routers have unique interfaces based on models and interface speed supported.

Here, I am using Cisco ISR (Integrated Service Router) – 4331 which supports gigabit ethernet interfaces.

This Blog Post guides you through:

1. Configuration of Internet Protocol (IP) Addressing on Cisco Router
2. Verify IP Connectivity and Interface Status

Lab Tutorial on IP Configuration and Assignment on Cisco ISR

This is the Topology which I am using to showcase this IP Assignment Configuration here.

As you can see in the network architecture, I am using two Enterprise Cisco Routers which are:

1. Cisco ISR 4331 – CNTV India
2. Cisco ISR 4331 – CNTV 1

The Network Architecture which I am using here, will be shown often for further labs, hence this is an actual enterprise network components placed.

Two LAN’s are deployed here as displayed in the picture above.

For this LAB of IP Configuration, I am using only one router here for showcasing this blog post.

IP Assignment and Configuration

IP Configuration on CNTV India Cisco Router.

To Enable and Perform IP Address Assignment you need to enter the Cisco Router CLI

Summarizing the Steps below.

Router > This represents the enable mode

Router > Enter Privilege mode by Entering the Command “Enable”

Router# This is Privilege mode

Router# Enter Configuration mode to configure interfaces and add IP addresses

Router# Configure Terminal or Conf T ( enters into configuration mode)

Router(Config)# To Assign IP Address on Router Interfaces you need to enter into ” Interface Configuration Mode”

Router(Config)#Interface gigabitethernet0/0/0

Router(Config-if)#This Represents Interface Configuration Mode, Here we assign IP Addressing and subnet mask

Router(Config-if)#IP Address 192.168.1.1 255.255.255.0

Router(Config-if)No Shutdown ( This Command notifies Cisco Router to enable the interface status up)

Router(Config-if)Exit

This is How you perform and configure IP Address assignment on a Cisco Enterprise Router.

Final Command Summary of IP Address Configuration on Cisco Router

Router> Enable

Router# Configure Terminal

Router(Config)#interface gigabitethernet0/0/0

Router(Config-if)#ip address 192.168.1.1 255.255.255.0

Router(Config-if)#no shutdown

Router(Config-if)#exit

Router#