tcpdump mailing list archives

Re: important query on tcpdump header files and source codes


From: Max Laier <max () love2party net>
Date: Wed, 16 Jul 2008 09:53:31 +0200

On Wednesday 16 July 2008 09:09:31 Ignacio, Domingo Jr Ostria - igndo001 
wrote:
Or 2. When the tcpdump do the packet capture, is it looking/utilizing
the kernel variables within the protocol stacks or it is operating
independently from the kernel?( Sorry about this question guys, just
need probably to read more on tcpdump packet capturing thru libpcap:))

If you are interested in the state stored in the kernel tcpcb you might 
want to look at trpt(8): http://www.freebsd.org/cgi/man.cgi?query=trpt

It is available on at least FreeBSD, MacOS X and it seems AIX.  Not sure 
if there is an equivalent in Linux, though.

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