IGMP - setup the right values

  • 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 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 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)

  • Netgate Administrator

    Not mentioned in that guide is the firewall rule:


    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 logs you are seeing. Those are probably a server on your LAN trying to announce itself via UPNP.


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