The configuration between router R5-1, interface e0/1, and R5-2, interface e0/1, follows:
router_R5-2# configure terminal router_R5-2(config)# ip cef switch router_R5-2(config)# tag-switchingadvertise-tagsrouter_R5-2(config)# interface e0/1 router_R5-2(config-if)# tag-switching ip router_R5-2(config-if)# exit router_R5-2#(config)#
The configuration between router R5-2, interface e0/2, and R5-3, interface e0/2, follows:
route_R5-2(config)# interface e0/2 route_R5-2(config-if)# tag-switching ip route_R5-2(config-if)# exit
router_R5-2(config-if)# interface a2/0.1
router_R5-2(config-subif)#ip address 189.26.11.15 255.255.0.0 router_R5-2(config-subif)#tag-switching ip router_R5-2(config-subif)#no shutdown router_R5-2(config-subif)#exit
router_R5-2(config)# interface a2/0 router_R5-2(config)# no shutdown
router_R5-3# configure terminal router_R5-3(config)# ip cef switch router_R5-3(config)# tag-switchingadvertise-tagsrouter_R5-3(config)# interface e0/2 router_R5-3(config-if)# tag-switching ip router_R5-3(config-if)# exit
router_R5-3(config)# interface e0/5 router_R5-3(config-if)# tag-switching ip router_R5-3(config-if)# exit
5-8ATMSwitch Router Quick Software Configuration Guide