Posted by:
MJ
(
)
Date: July 11, 2011 02:15AM
http://en.wikipedia.org/wiki/IP_address_spoofing"IP spoofing can also be a method of attack used by network intruders to defeat network security measures, such as authentication based on IP addresses. This method of attack on a remote system can be extremely difficult, as it involves modifying thousands of packets at a time. "
It can also be used in what is known as "man in the middle" attacks.