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: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
|
