Static IPv6 behind a Fritzbox 7583 via PPPOE not working

[A Former User]

Hi folks,
i am struggling with my IPv6 setup and i think you guys are the only ones who can help me :)

What i got from the ISP:
Fritzbox 7583 and an internal 10.x.x.x. address and a dynamical IPv6 block for my modem
and i got an static IPv6 /60 block and a static ipv4 via PPPOE for my own router.

Ihre IPv4 Adresse: 178.251.xx.xx
Ihr IPv6 Präfix: 2A02:1748:FAD4:6140::/60

The PPPOE Tunnel is up and the internet is working but the static IPv6 isn´t working at all.

The ISP told me to take first /64 präfix for the WAN interface and i should take an automatic created interface id

and gave me a general setup guide for the fritzbox:

This are my settings and i got an ipv6 address on the client but the traffic isn´t going to the web :(

Even if i ping v6 directly on the pfsense it´s not working:

The following input errors were detected:
Host "google.com" did not respond or could not be resolved.

and on windows:

Ping wird ausgeführt für google.com [2a00:1450:4001:816::200e] mit 32 Bytes Daten:
Zielnetz nicht erreichbar.
Zielnetz nicht erreichbar.
Zielnetz nicht erreichbar.
Zielnetz nicht erreichbar.

Ping-Statistik für 2a00:1450:4001:816::200e:
Pakete: Gesendet = 4, Empfangen = 0, Verloren = 4
(100% Verlust),

The only thing i doen´t know - do i have to setup a IPv6 Gatway and with IPv6 do i have to choose?

Thank you :)

[Crunk_Bass]

What does your current setup look like?
Is your pfSense behind your Fritz!Box router?
Wich device does all the PPPoE stuff?

I'm a little confused. Is IPv6 working when you are using the Fritz!Box?

At first glance it looks like you would be better off using something like a DrayTek Vigor165 as a modem instead of the Fritz!Box.