Configuring BGP IPv6 Routes
RouterA#configure terminal
RouterA(config)#ipv6 unicast-routing
RouterA(config)#router bgp 65000
RouterA(config-rtr)#neighbor 4001:0:1:1:5::4 remote-as 65001
RouterA(config-rtr)#address-family ipv6 unicast
RouterA(config-rtr-af)#neighbor 4001:0:1:5::4 activate
RouterA(config-rtr-af)#network 4001:0:1::/48