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Re: [PATCH] IPv6: (5/5) Allow IPv6 tunnels without own IPv6 address

To: Pekka Savola <pekkas@xxxxxxxxxx>
Subject: Re: [PATCH] IPv6: (5/5) Allow IPv6 tunnels without own IPv6 address
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Mon, 1 Sep 2003 03:51:34 -0700
Cc: vnuorval@xxxxxxxxxx, yoshfuji@xxxxxxxxxxxxxx, usagi-core@xxxxxxxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <>
References: <> <>
Sender: netdev-bounce@xxxxxxxxxxx
On Mon, 1 Sep 2003 13:48:44 +0300 (EEST)
Pekka Savola <pekkas@xxxxxxxxxx> wrote:

> Well, link-local addresses are used e.g. by routing protocols and such, so 
> having one is probably rather important..


> FWIW, on FreeBSD platform they take the link-local address of the first
> physical interface, and give the exact same link-local address on all of
> the tunnels, disambiuating them with the scope identifier.  Seems like an
> OK appaorach too, and guarantees (to the degree of unique MAC addresses)  
> that the addresses of the endpoints do not clash.

Interesting approach...  I'm not particularly picky about how this
uniqueness issue is solved.

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