troglobit / pimd

PIM-SM/SSM multicast routing for UNIX and Linux
http://troglobit.com/projects/pimd/
BSD 3-Clause "New" or "Revised" License
200 stars 90 forks source link

Force sending join/prune when there are no neighbors? #54

Closed amluto closed 9 years ago

amluto commented 9 years ago

I have a PIM setup that runs over a one-way GRE tunnel with a static RP configured. As far as I know, everything should work, except that pimd never sees Hello from the other end because the tunnel only carries outgoing traffic.

Can pimd be taught to send multicast join/prune messages even though it doesn't see any neighbors?

troglobit commented 9 years ago

As far as I know, no. The multicast messages passed between the routers is there to figure out what to forward between them ... you also need the unicast routes setup, e.g. with OSPF or similar.

amluto commented 9 years ago

This would only work in the case where no one's actually sending encapsulated data.

In any event, it turns out that I tweaked my tunnel config, and all is well. I'll close this.