RE: Are IPv6 auto-configured addresses transient?

["Hemant Singh (shemant)" <shemant at cisco.com>]

Brian,

Please see in line below.

>-----Original Message-----
>From: ipv6-bounces at ietf.org [mailto:ipv6-bounces at ietf.org] On Behalf Of
Brian Haberman
>Sent: Friday, October 16, 2009 1:35 PM
>To: Margaret Wasserman
>Cc: ipv6 at ietf.org
>Subject: Re: Are IPv6 auto-configured addresses transient?


>I suppose there is a related question as to how an application that
uses 
>IP addresses in referrals should behave.  Would an application find it 
>useful to know the lifetime associated with the auto-configured
addresses?

I did think about referrals and now have a response.  Any XYZ protocol
that sends referrals in control messages should already have mechanism
in place to send a control message for a referral update.  If the XYZ
doesn't have such control, then the XYZ protocol should add it.  I would
still stay away from sending lifetime of an address to an app.  Likewise
for sending lifetime to DNS when graceful renumbering already exists as
defined in the RFCs.  Personally I never get convinced for IETF taking
any new work to specify any behavior if folks mention to me a corner
case for a problem - like in the DNS email Mark Andrews sent.

Hemant