Have you tried masquerade? Seems like it is what you are looking for.
2024-02-29T10:11:15Z Lars Noodén <lars.nooden@xxxxxxx>:
> I have the following table within a NFTables rule set, but the address
> given below (192.168.1.213) is assigned via DHCP and will change from
> time to time. How should I rewrite that line to do SNAT using whatever
> the current IPv4 address happens to be at the moment?
>
> /Lars
>
> table ip nat {
> chain postrouting {
> type nat hook postrouting priority srcnat; policy accept;
> ip saddr 172.16.3.0/24 oif "wlan0" snat to 192.168.1.213
> }
> }
