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Packet forensics using TCP
Don Parker, Mike Sues

Most of us who work in the security world have at one time or another looked at the raw output of a firewall, IDS, or other type of security device. What that output invariably leads one to is viewing packets directly for an investigation. Doing packet forensics can be a difficult and time consuming endeavour. Due to this fact, many of us prefer to use convenient tools such as Ethereal to help facilitate our analysis. There is a notable problem with this approach, however.

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Packet forensics using TCP 2005-09-25
Anonymous
nice job guys!

Helped me get some things straight....

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Packet forensics using TCP 2005-10-20
pandian
Hi..thanx for the tutorial. G8 work..plz keep posting useful tutorial like this. Thank u...

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Ethereal can analyse sequence numbers 2005-12-02
Anonymous
Edit --> Preferences --> Protocols --> TCP --> Check the "Analyze TCP Sequence Numbers" checkbox....

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Packet forensics using TCP 2006-06-02
CMory (1 replies)
Whats the best method for reconstructing gif's?

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Re: Packet forensics using TCP 2006-07-06
Don Parker
Hi,

You may want to use Chaosreader to reconstruct your data-streams. It is a PERL tool, and works quite well.

chaosreader.sourceforge.net/index.html...

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Packet forensics using TCP 2006-10-05
Mikkous
Excellent information. This is why I use WildPackets OmniPeek product. The Expert really works without crying wolf. Their "packet visualizer" also shows TCP S,L+A in a simple format so I don't use as much aspirin. There is a free version also at www.omnipeek.com...

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Packet forensics using TCP 2006-11-26
Anonymous (1 replies)
Thanks a lot to Don Parker & Mike Sues. I got good understanding of tcp sequence number.

-MCS Kumar...

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Re: Packet forensics using TCP 2006-11-30
Don Parker
Hello Kumar,

Both Mike and I are happy that the article was able transfer knowledge to you.

Kind regards,

Don...

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Packet forensics using TCP - An excellent tutorial 2007-01-25
Joe
You clearly have a gift for teaching. I've read chapters of textbooks with less knowledge.

Please keep it up !...

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Packet forensics using TCP 2007-03-01
Aju Thomas
Hi Don and Mike,

This was an amazing piece of information for anybody who wants to know what exatcly happening on with TCP packets.Really helpfull.

A must read topic for any CISSP learners..!

Thanks

Aju Thomas

Network Analyst

Siemens,India

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Packet forensics using TCP 2008-04-08
Anonymous
Great article !! Would it help to stop SYN flooding... if yes then how to do that ?

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