:lastproofread: 2021-06-28 .. _examples-bgp-ipv6-unnumbered: ######################################### BGP IPv6 unnumbered with extended nexthop ######################################### General information can be found in the :ref:`routing-bgp` chapter. Configuration ============= - Router A: .. code-block:: none set protocols bgp system-as 64496 set protocols bgp address-family ipv4-unicast redistribute connected set protocols bgp address-family ipv6-unicast redistribute connected set protocols bgp neighbor eth1 interface v6only set protocols bgp neighbor eth1 interface v6only peer-group 'fabric' set protocols bgp neighbor eth2 interface v6only set protocols bgp neighbor eth2 interface v6only peer-group 'fabric' set protocols bgp parameters bestpath as-path multipath-relax set protocols bgp parameters bestpath compare-routerid set protocols bgp parameters default no-ipv4-unicast set protocols bgp parameters router-id '192.168.0.1' set protocols bgp peer-group fabric address-family ipv4-unicast set protocols bgp peer-group fabric address-family ipv6-unicast set protocols bgp peer-group fabric capability extended-nexthop set protocols bgp peer-group fabric remote-as 'external' - Router B: .. code-block:: none set protocols bgp system-as 64499 set protocols bgp address-family ipv4-unicast redistribute connected set protocols bgp address-family ipv6-unicast redistribute connected set protocols bgp neighbor eth1 interface v6only set protocols bgp neighbor eth1 interface v6only peer-group 'fabric' set protocols bgp neighbor eth2 interface v6only set protocols bgp neighbor eth2 interface v6only peer-group 'fabric' set protocols bgp parameters bestpath as-path multipath-relax set protocols bgp parameters bestpath compare-routerid set protocols bgp parameters default no-ipv4-unicast set protocols bgp parameters router-id '192.168.0.2' set protocols bgp peer-group fabric address-family ipv4-unicast set protocols bgp peer-group fabric address-family ipv6-unicast set protocols bgp peer-group fabric capability extended-nexthop set protocols bgp peer-group fabric remote-as 'external' Results ======= - Router A: .. code-block:: none vyos@vyos:~$ show interfaces Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down Interface IP Address S/L Description --------- ---------- --- ----------- eth0 198.51.100.34/24 u/u eth1 - u/u eth2 - u/u lo 127.0.0.1/8 u/u 192.168.0.1/32 ::1/128 .. code-block:: none vyos@vyos:~$ show ip route Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, f - OpenFabric, > - selected route, * - FIB route S>* 0.0.0.0/0 [210/0] via 198.51.100.34, eth0, 03:21:53 C>* 198.51.100.0/24 is directly connected, eth0, 03:21:53 C>* 192.168.0.1/32 is directly connected, lo, 03:21:56 B>* 192.168.0.2/32 [20/0] via fe80::a00:27ff:fe3b:7ed2, eth2, 00:05:07 * via fe80::a00:27ff:fe7b:4000, eth1, 00:05:07 .. code-block:: none vyos@vyos:~$ ping 192.168.0.2 PING 192.168.0.2 (192.168.0.2) 56(84) bytes of data. 64 bytes from 192.168.0.2: icmp_seq=1 ttl=64 time=0.575 ms 64 bytes from 192.168.0.2: icmp_seq=2 ttl=64 time=0.628 ms 64 bytes from 192.168.0.2: icmp_seq=3 ttl=64 time=0.581 ms 64 bytes from 192.168.0.2: icmp_seq=4 ttl=64 time=0.682 ms 64 bytes from 192.168.0.2: icmp_seq=5 ttl=64 time=0.597 ms --- 192.168.0.2 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4086ms rtt min/avg/max/mdev = 0.575/0.612/0.682/0.047 ms .. code-block:: none vyos@vyos:~$ show ip bgp summary IPv4 Unicast Summary: BGP router identifier 192.168.0.1, local AS number 65020 vrf-id 0 BGP table version 4 RIB entries 5, using 800 bytes of memory Peers 2, using 41 KiB of memory Peer groups 1, using 64 bytes of memory Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd eth1 4 64499 13 13 0 0 0 00:05:33 2 eth2 4 64499 13 14 0 0 0 00:05:29 2 Total number of neighbors 2 - Router B: .. code-block:: none vyos@vyos:~$ show interfaces Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down Interface IP Address S/L Description --------- ---------- --- ----------- eth0 198.51.100.33/24 u/u eth1 - u/u eth2 - u/u lo 127.0.0.1/8 u/u 192.168.0.2/32 ::1/128 .. code-block:: none vyos@vyos:~$ show ip route Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, f - OpenFabric, > - selected route, * - FIB route S>* 0.0.0.0/0 [210/0] via 198.51.100.33, eth0, 00:44:08 C>* 198.51.100.0/24 is directly connected, eth0, 00:44:09 B>* 192.168.0.1/32 [20/0] via fe80::a00:27ff:fe2d:205d, eth1, 00:06:18 * via fe80::a00:27ff:fe93:e142, eth2, 00:06:18 C>* 192.168.0.2/32 is directly connected, lo, 00:44:11 .. code-block:: none vyos@vyos:~$ ping 192.168.0.1 PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. 64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=0.427 ms 64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=0.471 ms 64 bytes from 192.168.0.1: icmp_seq=3 ttl=64 time=0.782 ms 64 bytes from 192.168.0.1: icmp_seq=4 ttl=64 time=0.715 ms --- 192.168.0.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3051ms rtt min/avg/max/mdev = 0.427/0.598/0.782/0.155 ms .. code-block:: none vyos@vyos:~$ show ip bgp summary IPv4 Unicast Summary: BGP router identifier 192.168.0.2, local AS number 65021 vrf-id 0 BGP table version 4 RIB entries 5, using 800 bytes of memory Peers 2, using 41 KiB of memory Peer groups 1, using 64 bytes of memory Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd eth1 4 64496 14 14 0 0 0 00:06:40 2 eth2 4 64496 14 14 0 0 0 00:06:37 2 Total number of neighbors 2