ICMP Destination Unreachable in SNORT

From: Grimes, Shawn (NIA/IRP) (GrimesShat_private)
Date: Wed Jun 19 2002 - 08:18:03 PDT

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    I'm getting ICMP Destination Unreachable alerts in SNORT from a dial
    up user.  It seems the original destination IP is to x.x.255.255
    (x.x. being the first two octets of our range).  The router is
    filtering these packets (hence why I get the ICMP destination
    unreachable).  My question is, is this a misconfigured box? If so,
    what is misconfigured?  Is this a compromised box?
    
    Any ideas? Do you need additional information?
    
    Thank You,
    Shawn Grimes
    Computer Specialist
    NCTS - Gerontology Research Center
    410-558-8007
    grimesshat_private 
    
    
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