editing tcpdump binary files

[Vaidehi Kasarekar <vaidehi_30 () yahoo com>]

Hello,
 I was wondering if there are any tools, by which we can edit tcpdump binary files. (The files which are created by the 
tcpdump -w option).
 
I want to change the source and dest IP addresses present in the binary files to some other addresses. For this, i need 
to see the presence of these addresses, and update these addresses by different addresses.
 
Any help or guidance in this matter wld be really very useful.
 
Thanks
-Vaidehi


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