From mboxrd@z Thu Jan  1 00:00:00 1970
From: YOSHIFUJI Hideaki / =?iso-2022-jp?B?GyRCNUhGIzFRTEAbKEI=?=
 <yoshfuji@linux-ipv6.org>
Subject: Re: 2.4.21+ - IPv6 over IPv4 tunneling b0rked
Date: Fri, 11 Jul 2003 19:47:13 +0900 (JST)
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	<Pine.LNX.4.44.0307111301520.27036-100000@netcore.fi>
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In article <Pine.LNX.4.44.0307111301520.27036-100000@netcore.fi> (at Fri, 11 Jul 2003 13:03:54 +0300 (EEST)), Pekka Savola <pekkas@netcore.fi> says:

> > We have but we cannot; it is refcnt'ed.
> 
> I don't understand what you mean.  Refcnt'ed by a userland process, so 
> that if you'd want the subnet-router anycast address, the whole time a 
> process (like radvd) should be running.. or what?

Kernel has refcnt for subnet router anycast address.
Ref/dereference from userspace is done via socket.
You cannot derefer subnet router anycast address 
from userspace if the socket hasn't refered it.

--yoshfuji