How to configure IPv6 Automatic 6to4 Tunneling

Lessons Discussion
24

Hi @hussien.samer

Remove the following two static routes:

R1(config)#ipv6 route 2001::3/128 2002:C0A8:1703::3  
R3(config)#ipv6 route 2001::1/128 2002:C0A8:C01::1

And then add a BGP configuration like this. R1:

R1(config)#router bgp 13
R1(config-router)#bgp log-neighbor-changes
R1(config-router)#neighbor 2002:C0A8:1703::3 remote-as 13

R1(config-router)#address-family ipv6
R1(config-router-af)# neighbor 2002:C0A8:1703::3 activate
R1(config-router-af)#exit-address-family

R3:

R3(config)#router bgp 13
R3(config-router)#bgp log-neighbor-changes
R3(config-router)#neighbor 2002:C0A8:C01::1 remote-as 13

R3(config-router)#address-family ipv6
R3(config-router-af)#neighbor 2002:C0A8:C01::1 activate

This will establish a BGP IPv6 neighbor adjacency:

R1#show ip bgp ipv6 unicast neighbors
BGP neighbor is 2002:C0A8:1703::3,  remote AS 13, internal link
  BGP version 4, remote router ID 192.168.23.3
  BGP state = Established, up for 00:05:06
  Last read 00:00:01, last write 00:00:31, hold time is 180, keepalive interval is 60 seconds
  Neighbor sessions:
    1 active, is not multisession capable (disabled)
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