[Re: http://tools.ietf.org/search/draft-hain-ipv6-ulac-01]

Mark Smith nanog at 85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org
Mon Apr 26 07:08:25 UTC 2010


On Mon, 26 Apr 2010 00:46:17 +0100
Tony Hoyle <tony at hoyle.me.uk> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On 25/04/2010 23:53, Mark Smith wrote:
> > On Sun, 25 Apr 2010 16:17:21 +0100
> > Tony Hoyle <tony at 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
> 
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG/MacGPG2 v2.0.12 (Darwin)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
> 
> iQEcBAEBAgAGBQJL1NRJAAoJEJ1qCQ6ePCDUDeQH/07EZ2uBb5E2Is5juO1NCp4S
> BYl36VnSIwmadVZpQxJ2tmrJB2jKGV2sV4K0hJ/QRHRNK0k0CJv2k/KWPf8sis6p
> v6bDjnHD1k4bSTxuwEgRbAbPB5uDpRaw7F2ItgdNKGmf8KZh+tCX4uYZ3Pger0Q9
> BEE6y/PjDlgk+ZW+BX6Jgp5raBC9gWu0hiFIhiIRXxmUNgKmJpaRsc6DH5jC5Hch
> BhrDxvHZCMNpG2KH32w9D955FSHBCt/ih/hNEB36yDTiln4gMx99jKquECeZrujJ
> zX1+sZ0DtLGR3oFjXyXfVS+8Y13i2fLYfQ1g5l/dhXGGs+Nwwb0ska8K+D5Tza0=
> =cgpi
> -----END PGP SIGNATURE-----
> 




More information about the NANOG mailing list