Equipment: Cisco 2811 router (2 units), V35DCE (one unit), V35DTE (one unit), crossover network cable (1 unit), PC (2 units)
step:
1. Add the WIC-1T module, connect the wires and configure the PC
2.Basic configuration
RouterA(config)#int f0/0
RouterA(config-if)#ip add
RouterA(config-if)#ip address 192.168.1.1 255.255.255.0
RouterA(config-if)#no shutdown
RouterA(config-if)#exit
RouterA(config)#int s0/3/0
RouterA(config-if)#ip add 192.168.12.1 255.255.255.0
RouterA(config-if)#no shutdown
RouterA(config-if)#exit
RouterA(config)#router ospf 1
RouterA(config-router)#net
RouterA(config-router)#network 192.168.1.0 0.0.0.255 area 0
RouterA(config-router)#network 192.168.12.0 0.0.0.255 area 0
RouterA(config-router)#end
RouterA#show ip route
RouterB(config)#int f0/0
RouterB(config-if)#ip add 192.168.2.1 255.255.255.0
RouterB(config-if)#no shutdown
RouterB(config-if)#exit
RouterB(config)#int s0/3/0
RouterB(config-if)#ip add 192.168.12.2 255.255.255.0
RouterB(config-if)#no shutdown
Router(config-if)#exit
RouterB(config)#router ospf 1
RouterB(config-router)#net
RouterB(config-router)#network 192.168.2.0 0.0.0.255 area 0
RouterB(config-router)#network 192.168.12.0 0.0.0.255 area 0
RouterB(config-router)#end
RouterB#show ip route
3. Test
