mDNS Repeater + Multi WAN

[OPNsense4ever]

I'm following up on https://forum.opnsense.org/index.php?topic=27242.0 because I never got it working until now.

I have Multi WAN setup for some time now and mDNS Repeater has not been working right. Today I tried creating a rule like this:

Protocol   Source   Port   Destination   Port   Gateway   Schedule      Description
IPv4 UDP   IoT net   *   224.0.0.251   5353   *   *      Allow mDNS / Bonjour (no policy route)

Suddenly it works. This rule is above my "Default allow IoT to any rule" which uses my "multiwan" gateway.

Is this expected behavior? Is there a better way to do this? I think this may be an issue that others are experiencing.

[Patrick M. Hausen]

That's expected and perfectly valid.

If you have a top rule that force routes everything to one of your WAN gateways, OPNsense does exactly that, so the mDNS queries never reach any of your other VLANs.

[OPNsense4ever]

Fantastic! Glad I finally figured it out.

Sounds like we should add something to the HowTo?

Thanks for the confirmation!