Hi Community, how do I stop dhcpv6 from assigning GUAs (like 2001:db80:abcd:1234::567/128 (from my ISPs (DTAG) delegated ip6 prefix)) to my lan clients? My lan clients also do SLAAC, so in my opinion there is no need for dhcpv6 to assign GUAs.
I already tried:
dhcpv6-mode stateless, which doesn't do/change anything for me, my lan clients still get GUAs assigned from dhcpv6
setting option dhcpv6_na '0' on my lan interface (in dhcp config file), which doesn't do/change anything for me, my lan clients still get GUAs assigned from dhcpv6
setting ip6class 'local' on my lan interface (in network config file), this kind of does what i want, it stops dhcpv6 from assigning GUAs to my lan clients (and still assigns ULAs, exactly as i want it), but this also breaks global ip6 connectivity for my lan clients at the same time (well, works as designed i guess since this option will only accept local (ULA) ip6 traffic on the lan interface according to the docs)
So how do I (properly) stop dhcpv6 from assigning GUAs (and only GUAs) to my lan clients without breaking global ip6 connectivity at the same time?
My router still runs 19.07.7.