Ahh yes, the ping of death, it's been a long time since this has worked.

What you'll need:
-Ping (or something similar) installed.
-A faster internet connection and better processor then your target
-A C/C++ decompiler,
-And a C/C++ compiler.

How it works:
-Decompile the Ping Program (unless you've got the source),
-Edit the maxPacketSize variable to something larger (this one varies, but it's still obvious),
-Recompile and run with a high packet size and a large count.

First, decompile your ping program, and search for "packet" or "packet size".
You'll see a line like "int maxPacketSize=65000;" change the 65000 to 99999999999
or something.

Second, recompile the suker using make or something...

Third run the program with a high count variable (like 11658 or something), and
a high packet size (99999999).
Example: ping -c 11658 -s 9999999 www.targetsite.com (or an ip XXX.XXX.XXX.XX )

Simple, it's outdated as fuck, but it's kinda fun to run against slower PCs within your own lan.

Upon success, you'll cause the comps net connection to timeout,
just nmap or something to see if it's up.

Most of you reading already know of this one, I just posted it cuz I'm bored.

NOTE: dont do this, its bad, and, umm, yeah, its bad.

Enjoy!