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Network Security Snort-Users
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[Snort-users] spp_stream4: TTL Evasion attempt

Subject: [Snort-users] spp_stream4: TTL Evasion attempt
Date: Mon, 08 Nov 2004 14:23:47 +1300
HI Folks,
        I have started to see lots of "spp_stream4: TTL Evasion attempt" alerts
on one of my sensors on our internal network. All the destination
addresses are on our dial-in pool.

So I am now trying to figure out what changed.  I don't think that this
is malicious traffic but I would like to figure out what is triggering
the alerts.

As a starter, just what type of event is the stream4 processor
reporting?

-- 
Russell Fulton, Information Security Officer, The University of Auckland
New Zealand



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