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Re: [PATCH] IPv6: Fix Prefix Length of Link-local Addresses

To: "David S. Miller" <davem@xxxxxxxxxx>
Subject: Re: [PATCH] IPv6: Fix Prefix Length of Link-local Addresses
From: Yuji Sekiya <sekiya@xxxxxxxxxxxxxx>
Date: Thu, 10 Oct 2002 09:00:34 +0900
Cc: dfawcus@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx, usagi@xxxxxxxxxxxxxx
In-reply-to: <20021009.164504.28085695.davem@xxxxxxxxxx>
Organization: Keio University
References: <20021010002902.A3803@xxxxxxxxxxxxxxxxxxx> <20021009.162438.82081593.davem@xxxxxxxxxx> <uu1jv9o3j.wl@xxxxxxxxxxxxxx> <20021009.164504.28085695.davem@xxxxxxxxxx>
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At Wed, 09 Oct 2002 16:45:04 -0700 (PDT),
** David S. Miller <davem@xxxxxxxxxx> wrote:

>    The reason we change the prefix length  from /10 to /64 is
>    following spec and adapting other imprementations.
> 
> I think Derek's explanation shows that the specification
> allows the /10 behavior.

Hmm... we interpret the spec as /64 prefix.

> Also, I suspect that since Derek works for Cisco, some "other
> implementations" behave how he describes. :-)

I have cisco box which installed IPv6 IOS.
But it defines no prefix length at an interface,

FastEthernet4/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::201:64FF:FEA3:ED55

and outgoing interface of routing table is NULL ? :-)

L   FE80::/10 [0/0]
     via ::, Null0, 7w0d

-- Yuji Sekiya


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