Re: replacing tcp fields

From: Martin McSweeney (mmcsween@hopper.math.uwaterloo.ca)
Date: Thu Apr 26 2001 - 18:55:08 EST


You can obviously use Netfilter (netfilter.kernelnotes.org) with queueing
rules in the OUTPUT chain.

On Thu, 26 Apr 2001, Karl Williams wrote:

> >> I need to replace the data field and the checksum field in a tcp packet with other information (not related to the socket or socket buffer).
>
> >Where is the packet originating from? Does it originate from a program on
> >your computer, or some other machine addressed to your computer, or just
> >forwarded through your computer?
>
> The packet itself is generated on my own machine. I assume it's using the TCP subroutines in the .../net/ipv4 directory.
>
>
>
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