How can I disable the Teredo filter on the 6490?

So I have the problem that since my move by the new FritzBox no longer online gamble on the Xbox and that excites me.

About a website that should help I have learned everything to the point where I should see a window with (disable / enable Teredo Filter), but this is not findable.

I should go to the FritzBox user interface on the Internet and then on filters and then I should go all the way down and the window Teredo… But find if I go to filter now come 4 categories and I think in no way with the teredo filter…

You must first turn on the "extension view" in the 6490, you do that in the menu "…" in the upper right corner.

Only then can you find it below Internet / Filter, in the "Lists" tab.