Subject: RE: [mobile-ip] Updating Home Agnet binding entry upon receipt of a re-registration request

From: "Adrangi, Farid" <[email-masked]>
Date: Tue, 2 Oct 2001 14:41:58 -0700

Thanks for a quick clarification.  Should there be an explicit reference in
the spec about this, as it seems to be important for interoperability?  Or,
perhaps the spec addresses this but I missed it!
regards,
Farid

-----Original Message-----
From: Charles E. Perkins [mailto:[email-masked]]
Sent: Tuesday, October 02, 2001 1:58 PM
To: Adrangi, Farid
Cc: [email-masked]
Subject: Re: [mobile-ip] Updating Home Agnet binding entry upon receipt
of a re-registration request

Hello Farid,

If the home agent rejects a registration request, it MUST NOT
alter the existing valid registration information (in v4,
considered to be the relevant entry in the home list).

Regards,
Charlie P.

"Adrangi, Farid" wrote:
> 
> What should the home agent (HA) do with a binding entry if the it decides
to
> reject a re-registration request associated with that binding entry?
> Consider MN <perm-address, care-of-address> registers with a HA
> successfully.  Later on, the MN decides to refresh its registration with
the
> HA by sending another registration request.  However, this time HA rejects
> the registration request with an "unspecified reason".  What is the
expected
> behavior of HA and MN at this point?  Should HA keep the old registration
> binding entry (of course, if its life-time hasn't already expired)?
Should
> MN assume that the old registration binding entry is still valid at the
HA?
> I haven't found any explicit explanation in the spec pertaining to this
> problem (or, perhaps someone can correct me).
> regards,
> Farid