ipv6 between fortigate and fritz box

EDIT: AVM is not parsing /var/flash/debug.cfg anymore :(

so it turns out the IPv6 ready devices AVM fritz box 7360 and FortiWifi 40c are not so IPv6 ready as they claim they are…

both can not handle prefix delegation so I have to hack static routes to make it work.
(I tried it all, it seems the fritz’s firewall blocks IPv6 when it was assigned via dhcp6 (“adminstratively prohibited” even when Prefix delegation is enabled and the firewall is set to “exposed host”)

so let’s do it the hard way:
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