Firewall Wizards mailing list archives

Re: Negative IP Packets - Risky?


From: "Ryan Russell" <ryanr () sybase com>
Date: Mon, 5 Oct 1998 22:42:42 -0700


Uh, OK, I'll bite...

What do you mean by "negative" IP packets?
Certainly not negative integer values... IP addresses
and such are unsigned.

I assume you say negative, meaning "bad" in some way?

Yes, there's some folks on the list who have experience
with bad IP packets that can crash servers.  I think some of them
have some experience protecting against them, too.

Was there a specific problem or set of problems you're worried
about?  Were you referring to denial of service attacks, or
intrusions, or what?

                         Ryan







By sending negative IP packets to a network, you can crash the server.

Is anyone else aware of this & possible precautions that one can take?

sincerely,

James Rowley - Eudemonic Solutions, Edinburgh, SCOTLAND







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