On 2023-04-09, Janne Johansson <[email protected]> wrote: >> On Thu, Apr 06, 2023 at 04:17:26PM +0200, Martin Schröder wrote: >> > > I'd like to create a "bridge" between two IP networks which will pass >> > > only multicast info. / traffic. >> The goal is to create a single "multicast domain" between the networks >> i.e. to allow multicast communication betweeen applications running in >> each of the networks ... >> >> Does that make sense? > > Well, the part where you don't allow unicast and only allow multicast > sounds strange still.
tcpdump "-B fildrop" might help.
