Hi, I'm wondering a way to set TTL for iBGP sessions, but this seems not possible. Apparently it's not possible in Cisco either; but e.g. BIRD and possibly other implementations allow it.
Seems "ebgp-multiphop [ttl]" is clone from Cisco and works on eBGP only. It seems to also change few other implementation details on how the connection is handled. And we do have "ttl-security hops [ttl]", but it's not exactly the same thing. It requires both sides to have the option set, as TTL=255 is expected (and e.g. Linux defaults to different ttl by default). For my use case, ttl=1 would be preferred since I want the iBGP session to succeed only if there is direct adjacency between my routers. So I'm wondering how the configuration should look like. I'd also preferably want to use the same config option regardless if it's ebgp or ibgp. So I'm wondering if it'd make sense to make 'ebgp-multihop' work also for ibgp, or just add a third 'ttl' option. Not sure which makes more sense having three similar options, or two options and having the option do more than usual. One more alternative would be to introduce 'ibgp-multihop'; but then it's different command depending if it's ibgp or ebgp. And finally, is there any patches somewhere that would do any of the above? Thanks, Timo _______________________________________________ Quagga-dev mailing list [email protected] https://lists.quagga.net/mailman/listinfo/quagga-dev
