Re: 2.4.21+ - IPv6 over IPv4 tunneling b0rked

[YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@xxxxxxxxxxxxxx>]

In article <Pine.LNX.4.44.0307111301520.27036-100000@xxxxxxxxxx> (at Fri, 11 
Jul 2003 13:03:54 +0300 (EEST)), Pekka Savola <pekkas@xxxxxxxxxx> 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