ION to ION (hub's) Standard VPN with BGP, route filtered and not reachable

nellson — Sat, 20 Jan 2024 00:42:27 GMT

I have a Hub to Hub standard VPN to connect the two together in place of a MPLS. The are peered with a Classic BGP session, site one sending a /20 prefix it has learned from it's core router. Site two sees that from the BGP Peer, but the route will not install, just shows in the filtered section, not the reachable.

The next hop is site 1's end of the VPN tunnel, which is clearly reachable as the BGP session is up.

Not a lot of docs on how to debug this reachability issue.

Re: ION to ION (hub's) Standard VPN with BGP, route filtered and not reachable

JayGolf — Wed, 24 Jan 2024 17:38:43 GMT

Hi @nellson ,

Here is a KB on BGP config and troubleshooting. Hope this helps!

topic ION to ION (hub's) Standard VPN with BGP, route filtered and not reachable in General Topics

ION to ION (hub's) Standard VPN with BGP, route filtered and not reachable

Re: ION to ION (hub's) Standard VPN with BGP, route filtered and not reachable