Subject: Re: more notes on gre
To: David Young <>
From: Rui Paulo <>
List: tech-net
Date: 08/27/2006 01:40:36
On Aug 26, 2006, at 7:53 PM, David Young wrote:

> This work may be a springboard for a Teredo developer, since Teredo
> uses UDP to tunnel IPv6 packets through NAT firewalls.  I do not  
> foresee
> working on Teredo, myself.
> While I was testing for regressions, I found that some bogus pointer
> arithmetic has always kept gre's Mobile IP mode from working.  I fixed
> that, but I could only test one gre(4) against another gre(4).   
> There's no
> telling if it interoperates with anything.  Maybe the feature should
> go away.
> I noticed that gre(4) is missing both the capability to tunnel  
> ethernet
> packets, and the capability to tunnel through v6 networks.  The latter
> should be easy to add.  The former will be more difficult.  Maybe this
> will be somebody's project on a rainy day.

Yes, that's me.

	-- Rui Paulo