On 2023-05-03, kodcode <kodc...@gmx.com> wrote: > Hello. > > I want to have a failover trunk on a RaspBI 3B+. mue0 (wired) should be the > master device. > Everything works fine using the wired interface. > My problem is, that after unplugging the wired master interface, I can't > even ping my default gateway.
Some devices don't like having their MAC address changed; trunk does this automatically so that the failover device uses the same MAC as the primary device. I can't say for sure that this is the problem, but it's possible. Try setting the mue interface's MAC to that of the bwfm interface before adding it to the trunk (lladdr <mac> in hostname.mue0).