Re: (Re)export unreachable routes via BGP.
TL;DR: I got it working. On 11/05/2018 09:15 AM, Grant Taylor wrote: So I don't think my problem is that simple low hanging fruit. Well, you got me on the proper path. I did some more searching, found how to enable some more logging, and discovered "rejected by protocol". Which ultimately pointed me at another thread with someone doing the same thing as me: Link - BGP rejected by protocol - https://bird.network.cz/pipermail/bird-users/2015-July/009807.html I had to add "interpret communities off" my BGP neighbor session on the middle host. I am now receiving the prefixes like desired on my end system (grant). Thank you for your help getting me pointed to the correct path. -- Grant. . . . unix || die smime.p7s Description: S/MIME Cryptographic Signature
Re: (Re)export unreachable routes via BGP.
On 11/05/2018 04:55 AM, Ondrej Zajicek wrote: Hi Hi, I do not see a reason why unreachable routes would not be exported, works for me. Okay. Thank you for confirming that. It is likely something completely different. Aren't both incoming and outgoing (grant) sessions IBGP? In such case they would not be forwarded due to basic BGP behavior (not forwarding IBGP-IBGP). No, there are two eBGP sessions with Team Cymru and a separate eBGP session with my other device. Team Cymru = AS65532 Bird = REDACTED (≠ 65532 ≠ 12345) Grant = AS12345 I was 98% certain that such is the case, and I have just confirmed. I also changed the AS (from 65535, to 12345, for testing) between Bird and my equipment. I'm not seeing any difference. So I don't think my problem is that simple low hanging fruit. -- Grant. . . . unix || die smime.p7s Description: S/MIME Cryptographic Signature
Re: (Re)export unreachable routes via BGP.
On Sat, Nov 03, 2018 at 08:31:09PM -0600, Grant Taylor wrote: > Is it possible to (re)export unreachable routes via BGP? > > All attempts thus far have resulted in the BGP neighbor session with the 3rd > test machine not (re)exporting any unreachable routes. I can (re)export > other routes without a problem. It looks to me like BGP is rejecting the > the routes (I think) because they are unreachable. Hi I do not see a reason why unreachable routes would not be exported, works for me. It is likely something completely different. Aren't both incoming and outgoing (grant) sessions IBGP? In such case they would not be forwarded due to basic BGP behavior (not forwarding IBGP-IBGP). -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santi...@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so." signature.asc Description: PGP signature
