It depends what you want to ping. By default the Billion router picks a new IPv6 address (out of your assigned subnet) every time it reboots. That means just picking your current router address is not enough for IPv6 TBBQM. You can configure your router with a static IPv6 but only if you also set it up with a static IPv4 address and I can't remember how.

My solution was to ping my server which has to have a static IPv6 address anyway. To do that I had to add an incoming filter rule that directed ICMP to my router. That works. My problem now is that I can't get the incoming filters for the server to work. The only way I found was a generic 'let it all in' rule - basically putting the server into a DMZ and I don't want to do that.

So I'm waiting for a response on their forums.

http://forum.billion.uk.com/viewtopic.php?f=19&t=118...