IPv6 BGP Notes
IPv6 BGP
Forming neighbors
– Enpoint IP addresses
-> IPv4
-> IPv6
Exchanging networks (payload)
– Address families
-> IPv4
-> IPv6
-> VPNv4
-> VPNv6
-> VRF
When other address families are activated, the IPv4 address family is added
Address Family Identifier (AFI)
– ipv4
– ipv6
– vpnv4
– vpnv6
Subsequent Address Family Identifier (SAFI)
– unicast
– multicast
– vrf
router bgp 100
address-family <afi> <safi>
IPv4 is the default address family
– To disable
router bgp 100
no bgp default ipv4-unicast
router bgp 100
no bgp default ipv4-unicast
neighbor 2001::2 remotes-as 200
address-family ipv6 unicast
neighbor 2001::2 activate
network 1111::1/128
sh bgp ipv6 unicast
