diff options
Diffstat (limited to 'docs/configuration/vrf/index.rst')
| -rw-r--r-- | docs/configuration/vrf/index.rst | 126 |
1 files changed, 125 insertions, 1 deletions
diff --git a/docs/configuration/vrf/index.rst b/docs/configuration/vrf/index.rst index a65f0073..23bc5422 100644 --- a/docs/configuration/vrf/index.rst +++ b/docs/configuration/vrf/index.rst @@ -183,9 +183,133 @@ For VRF maintenance the following operational commands are in place. .. opcmd:: traceroute vrf <name> [ipv4 | ipv6] <host> Displays the route packets taken to a network host utilizing VRF instance - identified by `<name>`. When using the IPv4 or IPv6 option, displays the + identified by `<name>`. When using the IPv4 or IPv6 option, displays the route packets taken to the given hosts IP address family. This option is useful when the host is specified as a hostname rather than an IP address. +Example +======= + +VRF route leaking +----------------- + +The following example topology was build using EVE-NG. + +.. figure:: /_static/images/vrf-example-topology-01.png + :alt: VRF topology example + + VRF route leaking + +* PC1 is in the ``default`` VRF and acting as e.g. a "fileserver" +* PC2 is in VRF ``blue`` which is the development department +* PC3 and PC4 are connected to a bridge device on router ``R1`` which is in VRF + ``red``. Say this is the HR department. +* R1 is managed through an out-of-band network that resides in VRF ``mgmt`` + +Configuration +^^^^^^^^^^^^^ + + .. code-block:: none + + set interfaces bridge br10 address '10.30.0.254/24' + set interfaces bridge br10 member interface eth3 + set interfaces bridge br10 member interface eth4 + set interfaces bridge br10 vrf 'red' + + set interfaces ethernet eth0 address 'dhcp' + set interfaces ethernet eth0 vrf 'mgmt' + set interfaces ethernet eth1 address '10.0.0.254/24' + set interfaces ethernet eth2 address '10.20.0.254/24' + set interfaces ethernet eth2 vrf 'blue' + + set protocols static route 10.20.0.0/24 interface eth2 vrf 'blue' + set protocols static route 10.30.0.0/24 interface br10 vrf 'red' + + set service ssh disable-host-validation + set service ssh vrf 'mgmt' + + set system name-servers-dhcp 'eth0' + + set vrf name blue protocols static route 10.0.0.0/24 interface eth1 vrf 'default' + set vrf name blue table '3000' + set vrf name mgmt table '1000' + set vrf name red protocols static route 10.0.0.0/24 interface eth1 vrf 'default' + set vrf name red table '2000' + +Operation +^^^^^^^^^ + +After committing the configuration we can verify all leaked routes are installed, +and try to ICMP ping PC1 from PC3. + + .. code-block:: none + + PCS> ping 10.0.0.1 + + 84 bytes from 10.0.0.1 icmp_seq=1 ttl=63 time=1.943 ms + 84 bytes from 10.0.0.1 icmp_seq=2 ttl=63 time=1.618 ms + 84 bytes from 10.0.0.1 icmp_seq=3 ttl=63 time=1.745 ms + + .. code-block:: none + + VPCS> show ip + + NAME : VPCS[1] + IP/MASK : 10.30.0.1/24 + GATEWAY : 10.30.0.254 + DNS : + MAC : 00:50:79:66:68:0f + +VRF default routing table +""""""""""""""""""""""""" + + .. code-block:: none + + vyos@R1:~$ 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, q - queued, r - rejected, b - backup + + C>* 10.0.0.0/24 is directly connected, eth1, 00:07:44 + S>* 10.20.0.0/24 [1/0] is directly connected, eth2 (vrf blue), weight 1, 00:07:38 + S>* 10.30.0.0/24 [1/0] is directly connected, br10 (vrf red), weight 1, 00:07:38 + +VRF red routing table +""""""""""""""""""""" + + .. code-block:: none + + vyos@R1:~$ show ip route vrf red + 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, q - queued, r - rejected, b - backup + + VRF red: + K>* 0.0.0.0/0 [255/8192] unreachable (ICMP unreachable), 00:07:57 + S>* 10.0.0.0/24 [1/0] is directly connected, eth1 (vrf default), weight 1, 00:07:40 + C>* 10.30.0.0/24 is directly connected, br10, 00:07:54 + +VRF blue routing table +"""""""""""""""""""""" + + .. code-block:: none + + vyos@R1:~$ show ip route vrf blue + 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, q - queued, r - rejected, b - backup + + VRF blue: + K>* 0.0.0.0/0 [255/8192] unreachable (ICMP unreachable), 00:08:00 + S>* 10.0.0.0/24 [1/0] is directly connected, eth1 (vrf default), weight 1, 00:07:44 + C>* 10.20.0.0/24 is directly connected, eth2, 00:07:53 + + .. include:: /_include/common-references.txt |