> Oh, sorry. > > nft describe meta iif > meta expression, datatype iface_index > > So, can you try 'type iface_index'? Yes, that works for the set creation but not with the rule. The set syntax reads now set brdg { type iface_index elements = { br0, br1, br2 , br3 } flags constant size 4 } and corresponding rule -> |meta iifname ne @brdg| throwing this error: /etc/fw/meter:11:14-18: Error: Set 'brdg' does not exist meta iifname @brdg ^^^ changed the name of the set but no dice. Tried the following variations in the rule but ending up with the same error meta iifname @brdg meta iif ne @brdg iifname ne @brdg iif ne @brdg ��.n��������+%������w��{.n����z���)��jg��������ݢj����G�������j:+v���w�m������w�������h�����٥