It really bothers me that some network admins choose to drop all ICMP traffic. I wish that the Shields UP! crowd had sent the message that ICMP is a very impor

It really bothers me that some network admins choose to drop all ICMP traffic. I wish that the Shields UP! crowd had sent the message that ICMP is a very important part of IP signalling; rather than sending the message that eeeevil hackers might discover your network and Hax your Gibsons, so you'd better drop everything you can on the floor to throw them off of your trail.