1ip6tables-translate -t filter -A INPUT -m hbh --hbh-len 22 2nft add rule ip6 filter INPUT hbh hdrlength 22 counter 3 4ip6tables-translate -t filter -A INPUT -m hbh ! --hbh-len 22 5nft add rule ip6 filter INPUT hbh hdrlength != 22 counter 6