Paul,

AFAIK, tcpdump will let you look at packet headers and 
also capture packets and save them to a file, but it 
won't let you look inside the packets.

Go to freshmeat.net and get 'ethereal'.  It'll let you
look inside packets in real time, capture them to look at 
them off-line, or look inside packets captured by tcpdump.
It works great and should do exactly what you want.  HTH.

Cheers,
Ed

On Fri, 03 Mar 2000 20:13:32, Paul Breedlove wrote:

> I need to capture all the packets sent and received 
> from an ip address, on the inside of a ipchains 
> firewall.
> 
> Here is what I know:
>
> 1. The internal ip address of the workstation.
> 2. The packets are TCP.
> 
> I can see the MASQ connection with ipchains -M -L. 
> I need to be able to capture these packets and see 
> what are inside them.
> 
> Can anybody help?

-- 
Linux -- because a computer's a terrible thing to waste!
System currently up 44 days, 20 hours, 29 minutes. 
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