allow multicast on interface via pve-firewall

[q8zx]

Hello Community,

I would like to allow incoming multicast-traffic on one specific interface (policy is otherwise DROP). For now, i added the rule by hand like this:

iptables -I tap100i2-IN 1 -m pkttype --pkt-type multicast -j ACCEPT

I found now way to do this via the web-gui. What would be the appropriate way of making this rule persistent?

Thanks in advance.

 

[Richard]

Use simply the multicast address range 224.0.0.0/4 as destination