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Date:      Tue, 16 Nov 1999 18:47:49 -0800
From:      The Mad Scientist <madscientist@thegrid.net>
To:        freebsd-security@freebsd.org
Subject:   Tracing Spoofed Packets
Message-ID:  <4.1.19991116182120.0094d280@mail.thegrid.net>

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I doubt it, but is there ANY way to trace spoofed packets coming in from
the Internet?  I've been getting these packets showing up at my boarder
router pretty regularly for the past few days now:

Nov 15 19:47:43 wormhole /kernel: icmp-response bandwidth limit 284/100
ppsNov 15 19:57:06 wormhole /kernel: ipfw: 400 Deny ICMP:3.13 10.1.6.6
10.0.1.2 in
via ed0
Nov 15 19:57:37 wormhole last message repeated 36 times
Nov 15 19:59:38 wormhole last message repeated 175 times
Nov 15 20:00:53 wormhole last message repeated 96 times

This goes on for about two hours.  The logs don't show anything else
abnormal from what I can discern.  I don't see any performance hit or
bandwidth drop, so it doesn't really bother me.  I'd just like to figure
out what's going on.
Thanks in advance,
-Dean


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