Option to add IPv6 addresses to bridge interface

[meliodas]

Hi, the current state of Merlin only allows you to set an IPv4 address on the bridge/LAN interface. Would be useful to also have the option to set IPv6 local addresses on the same interface. If there are other solutions, do inform thanks.

 

[dave14305]

I tested manually adding a ULA address to br0 a few months ago. dnsmasq.conf had to be adjusted to properly serve the prefix to clients. There was an oddity with dnsmasq’s default tag system that was different for this scenario, such as the lan tag did not apply, but a br0 tag had to be added for the ULA range. Specific details (and my memory) are sketchy, but I ultimately dropped the idea.

 

[ColinTaylor]

What is the use case here? If you enable IPv6 on the WAN then the bridge interface already gets a link local IPv6 address (IIRC).

 

[ZebMcKayhan]

What is the use case here? If you enable IPv6 on the WAN then the bridge interface already gets a link local IPv6 address (IIRC).

And if you set DHCP-PD to Disabled you get to put in your own ip for br0, which could be a ULA If so wishes. It wouldn't work for internet (unless firewall rules for ipv6 nat is added) but that's another story.
Unless we know the use case as @ColinTaylor says, it's hard to give proper answer.