ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:80 nft add rule ip6 nat postrouting oifname "eth0" meta l4proto tcp counter snat to [fec0::1234]:80 ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:1-20 nft add rule ip6 nat postrouting oifname "eth0" meta l4proto tcp counter snat to [fec0::1234]:1-20 ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:123 --random nft add rule ip6 nat postrouting oifname "eth0" meta l4proto tcp counter snat to [fec0::1234]:123 random ip6tables-translate -t nat -A postrouting -o eth0 -p tcp -j SNAT --to [fec0::1234]:123 --random-fully --persistent nft add rule ip6 nat postrouting oifname "eth0" meta l4proto tcp counter snat to [fec0::1234]:123 fully-random,persistent