fwd and bridging

[Shawn Barnhart]

----- Original Message -----
From: "Crist J. Clark" <crist.clark at attbi.com>

> On Sat, Apr 05, 2003 at 07:49:03AM -0600, Shawn Barnhart wrote:
> > The manpage states that fwd rules (like for transparent proxying) will
not
> > match bridged packets.  Will they ever, or is there some fundamental
reason
> > they can't?
>
> Bridged packets are never processed at the IP layer, that is, they
> never get passed to the ip_input() function. All of the 'fwd' code
> lives in ip_input() and ip_output() at the IP layer and above.

Thanks for the explanation.  It's unfortunate they can't, it'd be ideal for
a transparent proxying setup or other interception without having to alter
clients routes.