iptables-translate -I INPUT -j LOG
nft 'insert rule ip filter INPUT counter log'

ip6tables-translate -A FORWARD -p tcp -j LOG --log-level debug
nft 'add rule ip6 filter FORWARD meta l4proto tcp counter log level debug'

ip6tables-translate -A FORWARD -p tcp -j LOG --log-prefix "Checking log"
nft 'add rule ip6 filter FORWARD meta l4proto tcp counter log prefix "Checking log"'