IPV6 / CT

[gtmead09]

Looking for some help as a new person to IPV6. I have a UNIFI network running IPV6 and it is handing out addresses. In Proxmox I have two containers with Technetium as a primary and secondary DNS server. Both Proxmox containers are getting IPV6 via Slaac from the Unifi UDM Pro. I changed the DNS on my MacBook Air to use Technetium IPV6 address and they seem to be working fine. Where I am little stumped is how to set IPV6 static or is Slaac already basically static? If I set the DNS servers to Technetium and the addresses change, that will break DNS. When I paste into the network config the IPV6 address handed out by the UDM Pro, I get the error below. It seems to be OK with the gateway address, but I can't say that 100% because again it won't save due to the error below.

Example: 2001B8::42/64
Valid CIDR Range: 8-128

Any suggestion on how I am supposed to go about this? Sorry for such a newbie question.....

 

[ggoller]

Hi!
Which error do you get?
Not familiar with UNIFI networking equipment, but you should be able to add a static ip for a specific mac-address on their web interface (So basically hardcoding an ip-mac mapping).
Though if you're not using an ipv6 privacy extension, the host part of the ipv6 address will be generated from the mac-address, so it shouldn't change.