Objective: configure Routers 1, 2, and 4 with Internet Protocol (IP) addresses, and ping between them to test connectivity.

　　Lab Equipment: Router 1, Router 2, and Router 4 from the eRouters menu

　　Background Reading: Lab Primer Lesson 3: Basic IP configuration and Verification, and the “Ping” topic from Lab Primer Lesson 2: Basic Commands

　　1. Connect to Router 1, and assign it a host name of Router1.

　　Router>enable

　　Router#conf t

　　Router(config)#hostname Router1

　　Router1(config)#

　　2. Enter interface configuration mode for the Ethernet 0 interface.

　　Router1(config)#interface ethernet 0

　　Router1(config-if)#

　　3. Type the command that will set the IP address on the Ethernet 0 interface to 10.1.1.1 255.255.255.0, and enable the interface.

　　Router1(config-if)#ip address 10.1.1.1 255.255.255.0

　　Router1(config-if)#no shutdown