How to subnet with IPv6 on an RT-N66U with Merlin firmware?

[bgvaughan]

Comcast issued my household a combination cable modem and router; I would have preferred just a cable modem, and to let my RT-N66U handle all the routing, but they didn't offer an alternative device in my area. So, the cable modem/router has only the telephone and the RT-N66U attached to it, I've disabled the Wi-Fi on the cable modem/router, and put the RT-N66U in a DMZ. So far, this all works well, except for IPv6. Using the auto setting, the RT-66U picks up an IPv6 address, but it doesn't advertise or route IPv6.

I notice, though, that Comcast is now allotting /60s, so I thought I should be able to subnet it. I figured that would require setting the WAN and LAN IPv6 details as static settings on the IPv6 page in Merlin. Is that right? And can someone outline how I'd do it?

 

[kvic]

Using the auto setting, the RT-66U picks up an IPv6 address, but it doesn't advertise or route IPv6.

Maybe a screenshot of Asus IPv6 panel can help illustrating the issue.

 

[ParanoiA]

You can log into the Comcast modem and enable bridge mode. I also have same ipv6 issue with ac66 router

 

[bgvaughan]

You can log into the Comcast modem and enable bridge mode. I also have same ipv6 issue with ac66 router

That'd be a better solution for me. Thanks. I didn't know what "bridge mode" meant until I looked it up just now.