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forcing a packet to go through hw net device

To: netdev@xxxxxxxxxxx
Subject: forcing a packet to go through hw net device
From: "'Jeff' R. Steinhagen" <Jeff@xxxxxxxxxxxxx>
Date: Mon, 09 May 2005 14:58:42 +0200
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Hi!

I have a (maybe trivial) question about the kernel's networking code:

A packet with an "outside" destination goes through all layers including the 
hardware interface (user->socket->protocol->IP->HW). However if the packet is 
addressed to a local IP the transport through and checks by the hardware 
layer are avoided. This is perfectly OK for "normal" network usage.

I am profiling some network hardware and related code. Is it possible to force 
an internally generated packet to be send through all/the hardware layers?

Thanks for your help!

Cheers,
Jeff





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