RE: TCP/UDP Data Streams - Packet Reassembly

From: noyfb (noybat_private)
Date: Sat Dec 28 2002 - 09:44:00 PST

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    I tested Iris about two months ago.  At the end of my testing I forwarded
    the following comments to the eEye representative.  He concurred that the
    observations are reasonable as applied to the current release.
    
    My first impression of Iris is that it has some very useful features but I
    would not give it an unconditional recommendation.  These are my first
    thoughts as compared to Etherpeek.
    
    Pros:
    Easy to read display of captured packets.
    Does session reconstruction - Doesn't show full web pages but does show the
    components that make up the web pages
    Packet editor - Allows construction of hand-crafted packets that can be
    transmitted
    Good graphical summary of hosts visited by each machine seen
    
    
    Cons:
    Does not have as many display options/charts
    Does not have the detailed byte/packet/frame summary counts
    Output format ".cap" cannot be read by EtherPeek
    Doesn't seem to allow pause of the display while continuing to capture data
    
    At this point, my thought is that the two programs would complement each
    other but, if forced to choose, I would choose Etherpeek.
    
    Tim
    
    (reply to address is bogus.  Use timharat_private)
    
    
    -----Original Message-----
    From: Ali [mailto:amesdaqat_private]
    Sent: Thursday, December 19, 2002 10:20 PM
    To: forensicsat_private
    Subject: RE: TCP/UDP Data Streams - Packet Reassembly
    
    
    A product that I have used and can vouch for is Iris by eEye. That
    product has the BEST user interface I have seen on any Sniffer. It also
    has a decode feature so you can capture packets and decode them and view
    upper layer information. For example for Http you can view the html or
    xml that was transported and it will even show you step by step what was
    sent back and forth. You can also edit the packet and reinject it into
    the network. Check out the free trial.
    
    -----Original Message-----
    From: Susan Chan Lee [mailto:susan.leeat_private]
    Sent: Wednesday, December 18, 2002 8:08 AM
    To: pen-testat_private; forensicsat_private;
    tcpdump-workersat_private
    Subject: TCP/UDP Data Streams - Packet Reassembly
    
    Anyone know where to obtain information of re-assembling TCP/UDP data
    streams.
    
    I mean I have captured data using Tcpdump (i.e. raw data), how to I
    recombine the data into the orginal word attachment (or like)? Cannot
    seem to find any information anywhere on the technical involved in this.
    
    Thanks
    Susan Chan Lee
    Security Associates - Singapore
    
    *************************************************************
    Advanced Hands-On Security in the Arabic Gulf
    DefensiveHacking and DefensiveForensics, Qatar January 2003
    www.securityassoc.com/DefensiveCourse.pdf
    *************************************************************
    
    
    
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