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Date: Tue, 1 Mar 2005 22:47:07 -0500
From: Aziz KEZZOU <opensource.enthousiat@gmail.com>
To: freebsd-net@freebsd.org
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Subject: netgraph question : how to intercept incoming IP packets of a
	certain type?
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Hi folks,
Here is what I want to do : "Intercept all incoming IP packets on an
Ethernet interface of a certain type (e.g RSVP) and call my own
function to process, all inside the kernel"

Netgraph nodes : ng_iface, nf_bpf (and probably ng_ether) look
promising for this task but I can not figure out how to do it in
practice...
 
Any help is appreciated. Thanks,

neo