Hi people, im writing my masters Dissertation on mobile ad hoc intrusion detection system...im trying to simulate a DOS attack using NS2 and then model and intrusion detection system to detect these attacks...the problem im facing now is how to introduce this DOS attack in my MANET using ns2.....can anybody please help with this?
thanks people

a DOS attack can take many shapes, including, but not limited to
1) one or more machines flooding the sever/network with bogus traffic to the point where legitemate traffic can't figuratively 'get a word in edgewise'
2) exploiting a vulnerability in a service (such as a webserver) that causes an endless recursion (infinite loop) that eats up all the machine's resources and causes it to crash.
3) poisoning the routing of the internal network of the server farm so the machines can't talk to each other.

before you can simulate a DOS attack accurately you need to know more specifics of the simulated target to know the most efficient method of taking it down.