A little tool to generate any number of packets from a specified source
to a specified host. The packets generated all have invalid checksum
off by -1. You must have libnet installed to compile. All switches
are optional and defaults will be put in place if left out.
compilation: cc crcbork.c -o crcbork -lnet
usage: crcbork -s x.x.x.x -d y.y.y.y -c count -b type -z aa:bb:cc:dd:ee:ff
-x aa:bb:cc:dd:ee:ff
-s: source IP
-d: destination IP
-c: byte count to send
-b: what to break
{
type 1 : Break IP CRC
type 2 : Break TCP CRC
type 3 (actually any number != 1,2) : Break BOTH CRC
}
-z: source MAC
-x: destination MAC
Copyright (c) 2001 TCroc tcroc@cow.pasture.com
www.pasture.com/~tcroc
www.ghettohackers.net
Version V1.0 (Released) - If you find this usefull email
the author (tcroc@cow.pasture.com) and let him know. It will
help to pump his ego a little bit more than it already is.
OpenBSD Requires THIS PATCH to allow the MAC spoofing to function.
Thanks to Mark Grimes for creation of this patch. www.packetninja.net
(* BTW: Mark is an official DR-FU Master *)
TGator has provided step by step newbie installation instructions HERE on installing the OpenBSD etherspoof patch.