From: Stuart Henderson <stu@spacehopper.org>
Subject: Re: PIM support
To: Luca Di Gregorio <lucdig@gmail.com>
Cc: tech@openbsd.org
Date: Sat, 14 Sep 2024 19:03:42 +0100

On 2024/09/14 13:34, Luca Di Gregorio wrote:
> I have a multicast network implemented with mrouted.
> The network is growing fast, and I would like to switch to pimd.
> 
> I compiled pimd from https://github.com/troglobit/pimd, anyway, when I try to start, I receive:
> 
> Cannot set PIM flag in kernel: Protocol not available
> 
> The author troglobit told me:
> "Unfortunately, OpenBSD have removed PIM support from the MROUTING stack in their kernel"
> 
> Will be there the chance to have PIM supported again in any future release of OpenBSD?
> 
> Thanks in advance, regards

I think this is the first time it has come up since the PIM code was
removed in 2016 so there hasn't been a lot of interest - AIUI there
were a few problems with the old implementation and it was getting
in the way of other improvements in mcast/network stack.