Hello,
currently the Fritzbox integration only exposes the IPv4 address of the WAN interface. The integration appears to be based on the Fritzconnection python library, which from what I can tell has support for the IPv6 stuff (see: fritzconnection/fritzstatus.py at master · kbr/fritzconnection (github.com) ).
It’d be nice if the IPv6 WAN address and the prefix (I guess including subnet bits, as string in the prefix/bits format, e.g. 2a02:dead:beef::/64) would be exposed as sensors, too.
Thanks.