mDNS blocked on WAN - Only when Avahi package is enabled
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Hi all,
Every 5 minutes on the dot, I see multiple entries like the ones below being blocked by my firewall.
So far I've tried and concluded the following:
- Disabling Avahi package removes the errors, but also remove my option to use Chromecast across VLAN's.
- I've been through my entire setup, to make sure there's no leaks from my internal VLAN's towards WAN. I can't seem to find any issues. My switch is only L2, so routing is done by pfSense itself.
- mDNS should not exist on WAN at all, however I'm in doubt if my Sagemcom cable modem could be the culprit in some weird way.
- Packet capture below, doesn't make me much wiser, but hoping someone can point me towards a solution.
WAN - Promiscuous - 224.0.0.251 - Full detail:
PCAP_WAN_mDNS.txt
PCAP_WAN_mDNS.cap
EDIT: Source MAC address is my cablemodem in Bridge mode (40:62:31:0b:a7:d9)
I have the following devices on my network:
Sonos
Synology
Chromecast
iOS devices
Chromebooks
Windows 10 PC'sThanks for any replies, that can help me figure out this error.
BR,
Jim