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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
Subject:   netgraph question : how to intercept incoming IP packets of a certain type?
Message-ID:  <37e131660503011947346b94fb@mail.gmail.com>

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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



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