From owner-freebsd-hackers  Thu Oct 17 21:30:19 2002
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From: Archie Cobbs <archie@dellroad.org>
Message-Id: <200210180416.g9I4GrmL020888@arch20m.dellroad.org>
Subject: Re: Netgraph TCP/IP
In-Reply-To: <20021017110456.G15035@sjt-u10.cisco.com> "from Steve Tremblett
 at Oct 17, 2002 11:04:56 am"
To: Steve Tremblett <sjt@cisco.com>
Date: Thu, 17 Oct 2002 21:16:53 -0700 (PDT)
Cc: freebsd-net@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG
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Steve Tremblett writes:
> A while back someone was fishing for a project to take on and someone
> suggested a complete TCP/IP implementation in netgraph.  I found the
> idea interesting and am considering taking a shot at it.  My main goal
> in all this is to learn as much as possible and at this point I'm just
> reading.
> 
> While this is a personal educational project, I figure I should propose
> it here and solicit comments/thoughts/suggestions on such a venture so
> that maybe the results might be usable by someone else.

Are you intending to have this hook into the normal FreeBSD TCP/IP
stack or be truly standalone? I read your question as the latter but
others seem to read it as the former.

If the latter, I'd suggest splitting it up into several netgraph
nodes, eg.:

	| | |      | | |
        ng_udp    ng_tcp
           \       /
	    \     /
	     ng_ip
	       |
	       |
	     ng_arp
	      | |
	      | |
	    ng_ether

-Archie

__________________________________________________________________________
Archie Cobbs     *     Packet Design     *     http://www.packetdesign.com

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