rule 'FORWARD -p IPv6 --ip6-protocol udp --ip6-destination-port 547 -j OUT_ONLY'
rule 'OUTPUT -p IPv6 --ip6-protocol udp --ip6-destination-port 547 -j OUT_ONLY'

rule 'FORWARD -p IPv6 --ip6-protocol udp --ip6-destination-port 546 -j IN_ONLY'
rule 'INPUT -p IPv6 --ip6-protocol udp --ip6-destination-port 546 -j IN_ONLY'