>
>According to my modem lights and netstat -picmp, someone out there in IP land
>seems to be constantly pinging my system (not a flood ping, thank goodness).
>Is there an existing program that can be used to figure out the source of these
>packets?  I assume I can knock something together using BPF, but I am hoping
>that someone here has already solved this problem...

Look in the tcpdump man page for a complete description to it's usage,
but "tcpdump icmp" should be enough to get you going. Run it as root.

James