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    Broadcast 255.255.255.255 across vlans

    General pfSense Questions
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    • R
      rourke750
      last edited by

      I have a device that I'm using that does its discovery by doing a udp broadcast on 255.255.255.255 on port 9999.
      6fb99b7b-13ed-497b-b12d-3a88df642c6c-image.png
      That device is on a vlan with a subnet of 192.168.20.0/24 The server that I want to respond is on a different vlan with a subnet of 192.168.1.0/24. I've been trying to get IGMP proxy to forward the broadcast to the server's vlan but I can't seem to see message leave the vlan at all.
      My current IGMP Proxy config looks like
      dbcbc390-6cc2-4453-8dd1-5d8938ae2a9e-image.png

      My firewall rules look like this but I can't get the traffic to show at all
      cc208226-cb45-4602-96f2-86d4d8d99fe3-image.png

      Any ideas on what I'm doing wrong or if this is possible?

      JKnottJ 1 Reply Last reply Reply Quote 0
      • JKnottJ
        JKnott @rourke750
        last edited by

        @rourke750 said in Broadcast 255.255.255.255 across vlans:

        Any ideas on what I'm doing wrong or if this is possible?

        Routers don't pass broadcasts.

        PfSense running on Qotom mini PC
        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
        UniFi AC-Lite access point

        I haven't lost my mind. It's around here...somewhere...

        R 1 Reply Last reply Reply Quote 0
        • R
          rourke750 @JKnott
          last edited by

          @jknott is it not possible for a pfsense plugin to listen for the broadcast and then rebroadcast it to another vlan?

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            This will probably do it: https://forum.netgate.com/topic/155698/how-can-i-get-this-udp-relay-package-for-casting-across-vlans
            Or you could try PIMD bur the UDP broadcast relay is more likely IMO. Requires some work to setup though as it's not a pfSense package.

            Steve

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