What model of router, out of interest?
It's a Technicolor TG582n running 8.4.4.J.AM firmware.
I use it because it has an excellent configurable firewall that can be driven from the CLI, and not some limited, buggy, tick a box, GUI.
I tried another one with the v.10 firmware that does do ipv6, but I couldn't get on with it for some reason, so swapped back to this one, until I find time to fiddle with the other one some more.
Does everyone have to fill in ten different captcha s to post on here, or is it just me?