Static Inter-VRF Route

The Static Inter-VRF Route feature adds support for static inter-VRF routes. This enables the configuration of routes to destinations in one ingress VRF with an ability to specify a next-hop in a different egress VRF through a static configuration.

You can configure static inter-VRF routes in default and non-default VRFs. A different egress VRF is achieved by “tagging” the next-hop or forwarding via with a reference to an egress VRF (different from the source VRF) in which that next-hop should be evaluated. Static inter-VRF routes with ECMP next-hop sets in the same egress VRF or heterogenous egress VRFs can be specified.

The Static Inter-VRF Route feature is independent and complementary to other mechanisms that can be used to setup local inter-VRF routes. The other supported mechanisms in EOS and the broader use-cases they support are documented here:

Configuration

The configuration to setup static-Inter VRF routes in an ingress (source) VRF to forward IP traffic to a different egress (target) VRF can be done in the following modes:
  • This command creates a static route in one ingress VRF that points to a next-hop in a different egress VRF.

    ip|ipv6 route [vrf vrf-name destination-prefix [egress-vrfegress-next-hop vrf-name] next-hop

Show Commands

Use the show ip route vrf to display the egress VRF name if it is different from the source VRF.

Example
switch# show ip route vrf vrf1

VRF: vrf1
Codes: C - connected, S - static, K - kernel,
       O - OSPF, IA - OSPF inter area, E1 - OSPF external type 1,
       E2 - OSPF external type 2, N1 - OSPF NSSA external type 1,
       N2 - OSPF NSSA external type2, B - BGP, B I - iBGP, B E - eBGP,
       R - RIP, I L1 - IS-IS level 1, I L2 - IS-IS level 2,
       O3 - OSPFv3, A B - BGP Aggregate, A O - OSPF Summary,
       NG - Nexthop Group Static Route, V - VXLAN Control Service,
       DH - DHCP client installed default route, M - Martian,
       DP - Dynamic Policy Route, L - VRF Leaked

Gateway of last resort is not set

 S        1.0.1.0/24 [1/0] via 1.0.0.2, Vlan2180 (egress VRF default)
 S        1.0.7.0/24 [1/0] via 1.0.6.2, Vlan2507 (egress VRF vrf3)

Limitations

For bidirectional traffic to work correctly between a pair of VRFs, static inter-VRF routes in both VRFs must be configured.