Suricata

Detection of decode-events of IPv6 packets are not triggered. I have attached a pcap, that I used for the suricata-verify test, containing IPv4 and IPv6 packets that specify proto UDP and TCP but with no payload. The following rules will be triggered for IPv4 but not for IPv6.

alert tcp any any -> any any (msg:"TCP packet too small"; decode-event:tcp.pkt_too_small; sid:1;)
alert udp any any -> any any (msg:"UDP packet too small"; decode-event:udp.hlen_too_small; sid:2;)