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    IGMP - setup the right values

    Scheduled Pinned Locked Moved General pfSense Questions
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    • DaReaLDeviLD
      DaReaLDeviL
      last edited by

      Good evening,

      I'm now on PFSense 2.1 Rel. And want to config the igmp settings. The values for the two lans are simple. But I dont know where the multicast traffic comes from the wan side!? Setup is:

      modem <- pfsense (dials up) <- networks

      I just read a how to on http://pfsensesetup.com/igmp-proxy-configuration-in-pfsense/ but it says I should put a 0.0.0.0 and cdir as 0 in it. But I must chose a cdir between 1-32. I cant select 0?!

      Please help me for the correct settings.

      I also get the firewall log that 239.255.255.250:1900 is blocked. Could that be solved with the correct value?
      ![Bildschirmfoto 2013-09-15 um 20.21.34.png](/public/imported_attachments/1/Bildschirmfoto 2013-09-15 um 20.21.34.png)
      ![Bildschirmfoto 2013-09-15 um 20.21.34.png_thumb](/public/imported_attachments/1/Bildschirmfoto 2013-09-15 um 20.21.34.png_thumb)

      VM PFSense 2.4.3 (amd64) on Dell PowerEdge T410
      Xeon E5620 @ 2.40GHz 2 CPUs: 4GB Ram: 60GB Disk
      ISP (MNet) 1xModem (Vigor 130) 1xWan, 3xLan (PFSense)

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Not mentioned in that guide is the firewall rule:

        @https://doc.pfsense.org/index.php/IGMP_Proxy:

        You also need a firewall rule on the downstream side (typically LAN) that matches/passes this traffic which has the advanced option checked to allow packets with IP Options.

        This is different (I think) to the 239.255.255.250:1900 logs you are seeing. Those are probably a server on your LAN trying to announce itself via UPNP.

        Steve

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