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Re: 2.4.21+ - IPv6 over IPv4 tunneling b0rked

To: Andre Tomt <andre@xxxxxxxx>
Subject: Re: 2.4.21+ - IPv6 over IPv4 tunneling b0rked
From: Pekka Savola <pekkas@xxxxxxxxxx>
Date: Fri, 11 Jul 2003 07:51:56 +0300 (EEST)
Cc: linux-kernel@xxxxxxxxxxxxxxx, Mika Liljeberg <mika.liljeberg@xxxxxxxxx>, <netdev@xxxxxxxxxxx>
In-reply-to: <1057888154.26854.324.camel@localhost>
Sender: netdev-bounce@xxxxxxxxxxx
On 11 Jul 2003, Andre Tomt wrote:
> On fre, 2003-07-11 at 02:04, Mika Liljeberg wrote:
> > Well, the thing is that prefix:: is a special anycast address that
> > identifies a router on the link prefix::/n, where n is the prefix
> > length. You had configured a 127-bit link prefix, meaning that you had
> > only one valid unicast address (last bit == 1) in addition to the router
> > anycast address (last bit == 0).
> 
> Thanks for the explanation, I've been struggling to understand what
> Yoshfuji tried to explain to me earlier on this topic (see "IPv6 bugs
> introduced in 2.4.21" - ie. my bogus bugreport), now it all makes
> perfect sense :-)

Well, the system may make some sense, but IMHO, there is still zero sense 
in policing this thing when you add a route.  That's just plain bogus.  
This is a bug which must be fixed ASAP.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


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