From owner-freebsd-net  Wed Oct 25 15: 3: 2 2000
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Date: Wed, 25 Oct 2000 15:02:46 -0700
From: Julian Elischer <julian@elischer.org>
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To: Greg Fausak <lgfausak@august.net>
Cc: freebsd-net@FreeBSD.ORG
Subject: Re: BPF usage questions
References: <m13oUfP-002H0RC@gomer.august.net>
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Greg Fausak wrote:
> 

> >What is netgraph?
> 
> whoops...  Foot in mouth.  I have done some research now and see this
> is great!  Is there somewhere I can look at examples of
> ng implemented nodes?  Specifically, I'd like to experiment with
> frame relay (DSL), multi-link (node multiplexing-demultiplexing) and
> vpn.

welllll, start with the netgraph(4) manpage (not netgraph(3))
then you'll find MOST of the implemented nodes in /sys/netgraph,
though there are a couple of others (sync cards)

the mpd-netgraph port (under ports/net) can use netgraph to run pptp
vpns
and the ppp daemon (ppp(8)) can use netgraph to connect to 
pppoe sessions running through DSL. (though it needs a 
ethernet attached DSL modem.)

there is also an article on netgraph on Daemonnews
in the "blueprints (?)" section that is illuminating..

also check out /usr/share/examples/netgraph 
for examples of how you might set up some configurations.

For a very conoluted example you may write yur own setup and control C
program
using the netgraph(3) library to control it. (that's what mpd and ppp
do)

> 
> Thanks,
> 
> ---greg

-- 
      __--_|\  Julian Elischer
     /       \ julian@elischer.org
    (   OZ    ) World tour 2000
---> X_.---._/  presently in:  Budapest
            v
'


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