FYI, after talking to AXIS support when I was considering getting an M1011, I asked if there was any way to statically configure the IPv6 address, instead of relying on there being router advertisements. They informed me that once you get into the camera, under Setup>System Settings>Advanced>Plain Config and pick "Network", if you scroll down, you can manually enter the static IPv6 address and gateway here. So now I have my new AXIS M1011 using a static IPv6 address in my colo uselessly pointing at the rear connections of my equipment on a dual-stack hostname:
http://cam.deus-exmachina.net