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Network Security Snort-Users
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[Snort-users] Strange portscan traffic with dest of 169.254.x.x

Subject: [Snort-users] Strange portscan traffic with dest of 169.254.x.x
Date: Mon, 25 Feb 2008 09:03:29 -0800 (PST)
For the past couple of days, I have been seeing some very strange portscan 
traffic coming from internal addresses and going to the internet.  The Snort 
box I have been getting these alerts on is sitting just behind our Internet 
firewall.  I have attached a screenshot of the alert.

It's odd for a couple reasons.  First, why is 169.254 traffic even getting 
routed to our external firewall.  This is probably something I need to discuss 
with our network admin.  That just seems weird to me.  Second, if I am reading 
the alert correctly, it looks like the computer is scanning itself for NetBIOS 
and SMB ports.  I was just wondering if anyone else has seen anything like this.

AG



      
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