Linux routing

[Charles van Niman]

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-filtering


/Charles van Niman

On Tue, Apr 24, 2018 at 9:16 AM, knet solutions <knetsolutions2 at 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 ?
>
> --
>
> *Regards, *
>
> *Suresh*
> *Knet solutions.*
>
> https://github.com/knetsolutions/KNet
> http://knet-topology-builder.readthedocs.io/
> http://knetsolutions.in/
>
>
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