If you haven't already, you will need to edit the rp_filter flag in linux. Setting this to "2" (commonly called RPF Loose) may help with your routing issue. Let me know if you have any questions or issues. https://www.slashroot.in/linux-kernel-rpfilter-settings-reverse-path-filteri... /Charles van Niman On Tue, Apr 24, 2018 at 9:16 AM, knet solutions <knetsolutions2@gmail.com> wrote:
All,
I am facing a strange issue (all routers are linux with bird runnning). My topology(RING Topology) is as below,
R1 ------------R2------------R3---------R4
BGP is running on all nodes.
R1 to R3 route is going via R1--R2--R3 and the return path is in also in same path (R3--R2----R1), then thing works fine
But suppose,
R1 to R3 path is R1---R2---R3 and return path is R3----R4---R1. then traffic is not passing.
Any configurations i should do in linux ?
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*Regards, *
*Suresh* *Knet solutions.*
https://github.com/knetsolutions/KNet http://knet-topology-builder.readthedocs.io/ http://knetsolutions.in/