part 2
1000356; rev:1;)
alert icmp any any -> <FW_TUNNEL_v6> any (msg:"Suspicious ICMPv6 Packet Too Big (WANv6)"; itype:2; threshold:type threshold, track by_src, count 20, seconds 60; classtype:attempted-dos; sid:1000357; rev:1;)
if there is anything else please let me know this has some adaptations to it for udp flood issues with false positives etc
part one and two are because of the 32762 char limit on my posts