*ip;test-ip4 :prerouting;type nat hook prerouting priority 0 iifname "eth0" tcp dport 80-90 dnat 192.168.3.2;ok iifname "eth0" tcp dport != 80-90 dnat 192.168.3.2;ok iifname "eth0" tcp dport {80, 90, 23} dnat 192.168.3.2;ok - iifname "eth0" tcp dport != {80, 90, 23} dnat 192.168.3.2;ok - iifname "eth0" tcp dport != {80, 90, 23} dnat 192.168.3.2;ok # BUG: invalid expression type set # nft: src/evaluate.c:975: expr_evaluate_relational: Assertion '0' failed. iifname "eth0" tcp dport != 23-34 dnat 192.168.3.2;ok