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One could theoretically have a package that sprayed UDP packets at a particular IP address, or even have a modified TCP that ignored disconnects. I think most service providers would regard using such code as being on a par with running a program that tried to telnet sequentially to all known IP addresses, trying common passwords on each.

Code exists to do all of the things that you've mentioned.

That was the original point of the discussion.

No doubt it does. But my assertion is that most service providers would cut you off if you tried running such code, especially the latter case. -- Richard Parratt