Hi fellow engineers and enthusiasts.
I have a problem with active routes via a multihop iBGP session. When I create the session using public IPs, it shows routes are active as if they were working but not in practice. I have set multihop as “yes” and made sure filters, etc are correct.
When I connect session via tunnel it works as intended. (Obviously with correct single hop iBGP settings).
Could anyone assist with my problem?
TL;DR - iBGP (Multihop) active routes not working.
Thanks
what is your nexthop-choice for the iBGP connections?
I've tried both, but what should it be? (Im a bit rusty on BGP) force self or propagate? I've also left it as default.
try to set nexthop-choice=force-self and then post print of your routes
DAb 10.0.0.0/8 x.x.x.x 200
x.x.x.x being public IP of peer. next hop choice set to force self on both sides
But cannot route to the 10 range
did the remote 10/8 have a correct route to your src subnet?
both are learning the correct public IP as the gateway on each respective side.
In my diagram.... I basically want to create a RouteReflector and a RouteReflector Client. routes populate but don't send traffic.
I am creating iBGP via Public IPs that aren't directly connected hence the Multihop setting.
As in the diagram it works via normal iBGP via Tunnel. I don't have any eBGP peering with my up stream provider.
Hopefully this extra information helps.
