Hi, thanks for pointing to it, problem was that i run this testing-kernel via tftp and so i missed the modules, sorry for disturbing regards Frank > Gesendet: Mittwoch, 22. September 2021 um 14:31 Uhr > > > > root@bpi-r2:~# nft list ruleset > > mnl.c:45: Unable to initialize Netlink socket: Protocol not supported > > Check your kernel config for > > CONFIG_NETFILTER_NETLINK=m > >