3.5 - BGP Reachability Alternative
I know this probably violates " Do not change or add any IP addresses...", but I'd like to know if this would be an alternate solution for 3.5
When R4 link to R3 goes down, R3 can still reach R4 loopback, but R5 (intermediate Router) drops/blackholes the traffic.
What I did was create a tunnel interface with a new subnet (150.10.3.x) - src/dst IP to respective loopbacks - advertised new subnet into OSPF. Pings from R3 to routes advertised from AS 54 to Router 4 are successful.
Does anyone see any issues/caveats with this (besides that I violated Rule #1)?