Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Avahi mDNS on Wireguard

    Scheduled Pinned Locked Moved
    WireGuard
    2
    2
    388
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • C
      cypherpunk
      last edited by

      Hi,

      I've managed to successfully access my local network through Wireguard.

      Now I'm looking into using the Avahi mDNS repeater which I've already setup on the firewall to repeat over the 172.16.16.0/24 subnet which I use for WG peers. Despite selecting the wg0 Interface in the Avahi web config (in addition to other VLANs I had previously), and adding 224.0.0.251/32 to the WG Peer "Allowed IPs" box in pfSense (my client's allowed IPs are 0.0.0.0/0), I can't seem to get it working. My clients can't pick up any mDNS devices. I've attached a photo of my pfSense WG Peer config for reference. I've also attached a snipped of my pfTop output for port 5353, looks like my WG subnet (172.16.16.1) is sending mDNS request to 224.0.0.251...

      I also have the "Repeat mdns packets across subnets" option in Avahi enabled too.

      4aa87f8a-d144-4b4b-92fe-bd040cf67010-image.png

      dennypageD 1 Reply Last reply Reply Quote 0
      • dennypageD
        dennypage @cypherpunk
        last edited by

        @cypherpunk AFAIK, the pfSense Wireguard implementation does not support multicast.

        Mentioned in the doc here.

        1 Reply Last reply Reply Quote 0
        • First post
          Last post
        Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.