On Tue, 14 Feb 2006 18:42:33 +0530, Suresh Ramasubramanian said:
After all when there's an unlimited number of hosts connected to the v6 network, all that needs to happen is a small botnet to develop, and then start to port scan.
The potentially larger number of hosts that can get infected will probably help do an exhaustive search for you, so that v6 botnets start small and then grow exponentially in size over time.
OK.. let's say we have a /48 allocated to an end site, and their router falls over at 1Mpps. The exhaustive search will completely clog their pipe for (2 ** (128 - 48))/1000000 seconds, or approximately 38,334,786,263 *years*. (That 2**80 is *huge*, a lot bigger than people think...) Even the most dim-witted site will notice after a day or two of this. And that's why a worm would have to use techniques like Steve and fiends wrote about.