Security Incidents mailing list archives

Hiding IP addresses in trace data


From: John Kristoff <jtk () depaul edu>
Date: Mon, 21 Oct 2002 09:55:12 -0500

Too often it seems that people are attempting to hide their IP address
by masking the obvious dotted decimal notated number in various trace
data. If you really care about not disclosing your IP address, be sure
to also mask the hex data in the traces you send to public lists like
this one.

...and hiding only two octets is not enough as long as the IP checksum
remains in the trace data.

John

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