After confirming MPLS L3VPNs and doing some internet breakout tasks. I wanted to have a look at leaking routes between VRFs away from L3VPNs.
I have been able to use a import map within the VRF to import specific routes using a route-map and prefix lists. However want to import routes based on their RT Value within BGP. As these are already on the routes it negates extra complexity with a second route-map so would like to do it that way. Also means less admin overhead on updating prefix lists rather than adding an RT.
I have routes in the IPv4 BGP RIB on a router with ‘RT:1:1’. Having set the ‘route-target import 1:1’ command within the VRF for IPv4 unicast. None of the routes are being imported imported using this method.
I had a feeling that this is because the routes are in the IPv4 Unicast BGP RIB and not the VPNv4 BGP RIB.
Is that a correct assumption? Or should what I’m doing work and I’m doing something wrong?
The routes I’m wanting to import into the VRF aren’t coming from within a VRF on the other side. I’m using a route map to set the extended community RT to 1:1 on export from a BGP neighbour command. However, looking at the routes in the BGP IPv4 RIB do have the RT set to 1:1.
I’m using standard Cisco IOS.
