firmware/src/packages/fff/fff-node/files/usr/lib/firewall.d/35-mc-ping

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nft -f - <<__EOF
table bridge filter {
chain MULTICAST_OUT {
# Erlaube PING
# -p IPv4 --ip-proto icmp -j RETURN
ether type ip meta l4proto icmp counter return
# Erlaube PINGv6
# -p IPv6 --ip6-proto ipv6-icmp -j RETURN
ether type ip6 meta l4proto icmpv6 counter return
}
}
__EOF