[125898] in North American Network Operators' Group
Re: [Re: http://tools.ietf.org/search/draft-hain-ipv6-ulac-01]
daemon@ATHENA.MIT.EDU (Mark Smith)
Mon Apr 26 03:09:08 2010
Date: Mon, 26 Apr 2010 16:38:25 +0930
From: Mark Smith <nanog@85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org>
To: Tony Hoyle <tony@hoyle.me.uk>
In-Reply-To: <4BD4D449.8020804@hoyle.me.uk>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mon, 26 Apr 2010 00:46:17 +0100
Tony Hoyle <tony@hoyle.me.uk> wrote:
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> On 25/04/2010 23:53, Mark Smith wrote:
> > On Sun, 25 Apr 2010 16:17:21 +0100
> > Tony Hoyle <tony@hoyle.me.uk> wrote:
> >
> > On 25/04/2010 03:01, Mark Smith wrote:
> >>>> I'm a typical, fairly near future residential customer. I have a NAS
> >>>> that I have movies stored on. My ISP delegates an IPv6 prefix to me with
> >>>> a preferred lifetime of 60 minutes, and a valid lifetime of 90 minutes
> >
> > What ISP would put a 'lifetime' on your ipv6 prefix?
> >
> >> Because they loan it to you while you are their customer. Unless you
> >> get PI, you don't 'own' your addresses, so you can't take them with
> >> you when you change ISPs. In IPv4 a lifetime is implicit, which might be
> >> as long/short as while your current connection is up, in IPv6 it is
> >> explicit.
> >
> That's not what 'lifetime' means in this discusion. They're talking
> about v6 addresses changing when you're with the same provider - indeed,
> when logged into the same link even. That's insane.
>
How much do you understand about IPv6 addressing? Are you aware that
IPv6 addresses have explicit preferred and valid lifetimes, and
therefore they can change over time?
> A change of ISP is a major change. Your ipv4 addresses will change as
> well if you change ISP.
>
> As you say, if you don't want them to change get PI space. v6 and v4
> are no different in this respect.
>
> Tony
>
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