ICMP Firewall Filter

I want to catch “ICMP Type 5 Code 1” packets with a firewall rule. How do I do that?

http://livenudefrogs.com/~anubis/icmp/#type5

Hi

i think you can use
/ip firewall filter add chain=forward (or any chain you want) protocol=icmp icmp-options=5:1

Good Luck