http://shouldidisableicmp.com http://shouldidisableicmp.com ICMP types 3 and 4 should always be allowed. At your discretion, you may allow other types as well

http://shouldidisableicmp.com http://shouldidisableicmp.com ICMP types 3 and 4 should always be allowed. At your discretion, you may allow other types as well. Inbound, I allow types 0, 3, 4, 8, and 11, but I'm a network engineer. A paranoid security guy may prefer to block some of those.