Date: Mon, 22 Sep 2003 14:28:41 -0700 From: Luigi Rizzo <rizzo@icir.org> To: "Michael W. Oliver" <michael@gargantuan.com> Cc: freebsd-net@freebsd.org Subject: Re: Fwd: ipfw, pipes, queues, and IPv6 Message-ID: <20030922142840.A56211@xorpc.icir.org> In-Reply-To: <200309212010.36939.michael@gargantuan.com>; from michael@gargantuan.com on Sun, Sep 21, 2003 at 08:10:29PM -0400 References: <200309212010.36939.michael@gargantuan.com>
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ipfw/ipfw2 will only see non-ipv4 packets at the layer2 level, i.e.
if you have net.link.ether.bridge.ipfw=1 or net.link.ether.ipfw=1
So you cannot do much classification except for the protocol type.
Re. ipv6 and pipes, i do not see any dummynet hooks in netinet6/
so almost surely it won't work.
The long term plan is to add ipv6-specific instructions to ipfw2
so you can replace ip6_fw with ipfw2, and then you "only" need
to add the post-ipfw processing from netinet/ip_{input,output}.c
in the corresponding netinet6/ files.
cheers
luigi
On Sun, Sep 21, 2003 at 08:10:29PM -0400, Michael W. Oliver wrote:
Content-Description: signed data
> [Folks, I posted this to ipfw@ last week, but had no takers over there.
> Anyone here want to take a stab at it? Thanks in advance!]
>
> I am looking for a little sanity check here. I have a gif tunnel set up for
> IPv6, and I am passing protocol 41 through the ipfw pipe/queue mechanism
> to/from my tunnel provider (part of a grander pipe/queue scheme due to my
> new Vonage service :). A couple of questions:
>
> 1) Am I correct in assuming that all IPv6 traffic that I am permitting via
> ip6fw is governed by the pipe/queue rules that I have configured for
> protocol 41 in ipfw?
>
> 2) If #1 is true, is there a way for me to use pipes/queues within ip6fw
> itself to discriminate by type of IPv6 traffic?
>
> Thanks for the info!
>
> --
> Mike
> perl -e 'print unpack("u","88V]N=&%C=\"!I;F9O(&EN(&AE861E<G,*");'
>
>
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