page( https://wiki.nftables.org/wiki-nftables/index.php/Matching_packet_metainformation) To know more about conntrack marks and packet marks, see Setting packet metainformation. ( BTW link is broken. It link to: https://wiki.nftables.org/wiki-nftables/index.php/Setting_packet_metainformation and it appears a FORBIDDEN page...) -- Paulo Ricardo Bruck
