From: Martin Josefsson <gandalf@wlug.westbo.se>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Virtual circuits
Date: Mon, 03 Dec 2001 14:12:27 +0000 [thread overview]
Message-ID: <marc-lartc-100738862827630@msgid-missing> (raw)
In-Reply-To: <marc-lartc-100737357102407@msgid-missing>
On Mon, 3 Dec 2001, bert hubert wrote:
> On Mon, Dec 03, 2001 at 11:01:09AM +0100, M.F. PSIkappa wrote:
>
> > I'm interesting about this, I know that in FreeBSD it's posible via
> > netgraph but I didn't see any usable solutions for linux.
> > I know about Frame Diverter but it's not suitable for my purpose.
>
> This is not what these Virtual Circuits are - the VCs I mention are ATM
> vc's, not 'bridging tunnels'.
>
> > How to sent _everything_ (e.g. arp) from client1 to client1_router?
> > I cant use any tunnel.
> > It's posible with linux ?
>
> Well, you can use a tunnel, it's just that you want a 'bridging tunnel',
> that appears by magic so to speak. Basically you are then a two-port
> repeater with a long bit in the middle.
>
> Now, is this possible? I think it is, I'm just not entire sure how.
>
> Perhaps a proxy-arping pseudo bridge does what you want? In that case ARPs
> are not transmitted over your tunnel, but your tunnel device reacts to ARP
> requests for hosts it knows about on the other side.
>
> If you want a real bridge, you should find a way to create a 'virtual
> interface' that lives on the remote host, and run a bridge between your
> regular interface and the 'virtual long distance' one.
>
> Perhaps this is possible.
Yes it is, by using CIPE and the normal ethernet bridge you can do exactly
this. CIPE is an encrypted tunnel that creates a virtual ethernet
interface that can be used for bridging.
http://sites.inka.de/bigred/devel/cipe.html
"it is even possible to run an Ethernet bridge over CIPE"
It says it only works with the bridge in kernel 2.4 or using a patched 2.2
Hope it helps.
/Martin
Never argue with an idiot. They drag you down to their level, then beat you with experience.
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next prev parent reply other threads:[~2001-12-03 14:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-03 9:59 [LARTC] Virtual circuits M.F. PSIkappa
2001-12-03 13:32 ` bert hubert
2001-12-03 14:12 ` Martin Josefsson [this message]
2001-12-03 15:03 ` Jasper Spaans
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