FB DISCUSSIONS: BGP: REACHABILITY THROUGH DEFAULT ROUTE


2 routers R1 (AS10)n R2(AS20)…R1 loopback 1.1.1.1/32 R2 loopback 2.2.2.2/32..
Ebgp is running between both routers, multi-hop command configured.
Note:- ebgp configured w.r.t loopback.and loopback is reachable to both routers via default routes.
Like for R1(conf t)‪#‎ip‬ route 0.0.0.0 0.0.0.0 f0/0
Vice-versa in case of R2.

Question:-
1.Ebgp neighbourship is not up, possible reasons w.r.t loopacks between R1 n R2?
2. Size of MSS n MTU exchanged

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