1iptables-translate -A PREROUTING -m realm --realm 4 2nft add rule ip filter PREROUTING rtclassid 0x4 counter 3 4iptables-translate -A PREROUTING -m realm --realm 5/5 5nft add rule ip filter PREROUTING rtclassid and 0x5 == 0x5 counter 6 7iptables-translate -A PREROUTING -m realm ! --realm 50 8nft add rule ip filter PREROUTING rtclassid != 0x32 counter 9 10iptables-translate -A INPUT -m realm --realm 1/0xf 11nft add rule ip filter INPUT rtclassid and 0xf == 0x1 counter 12