RE: [Mip4] DHCP vs FA

["Arun SG" <[e-mail]>]

I thought that the tunnel from HA anyway exists. It's the end point at
the other end [whether the mobile or the FA] that is negotiated by the
"R" bit; from Kent's mail, the answer seems to be that the mobile
prefers the FA to be the end point - the reason for which I'm trying to
understand...
Thx,
Arun

-----Original Message-----
From: Sri Gundavelli [mailto:[e-mail]] 
Sent: Monday, January 08, 2007 11:37 AM
To: Arun SG
Cc: Kent Leung (kleung); Behcet Sarikaya; [e-mail]
Subject: RE: [Mip4] DHCP vs FA


For CCOA mode, the home agent needs to have a unique tunnel for each
mobile and that has a bearing on the resources when compared to the
FA-COA mode. This could be one other reason.

Sri


On Mon, 8 Jan 2007, Arun SG wrote:

> Just curious about the probable reason for the typical [or default] 
> behaviour of the MIP client - why it prefers FA CoA mode over Ccoa, 
> since if FA does not mandate registration, the MIP Client might very 
> well register directly at HA. Is it to do with accounting at FA or 
> something  different?
>
> Thanks,
> Arun
>
>
>
> -----Original Message-----
> From: Kent Leung (kleung) [mailto:[e-mail]]
> Sent: Friday, January 05, 2007 11:48 PM
> To: Sri Gundavelli (sgundave); Behcet Sarikaya
> Cc: [e-mail]
> Subject: RE: [Mip4] DHCP vs FA
>
> Right.  Though typically the MIP client tend to favor the FA CoA mode 
> of operation in this case.
>
> Kent
>
> -----Original Message-----
> From: Sri Gundavelli (sgundave)
> Sent: Thursday, January 04, 2007 2:51 PM
> To: Behcet Sarikaya
> Cc: [e-mail]
> Subject: Re: [Mip4] DHCP vs FA
>
>
> If the "R" bit is the agent advertisement is not set, it is up to the 
> mobile to decide on the FA-COA or CCOA mode of registration.
>
> Sri
>
> On Thu, 4 Jan 2007, Behcet Sarikaya wrote:
>
>> Hi all,
>>  I was reading RFC 3344 and noticed that it is not clear on the 
>> choice
>
>> between the co-located care-of address mode using DHCP and FA 
>> provided
> care-of address mode of operation. If MN does get a co-located care-of

> address and there is an FA what happens then?
>> If this had been discussed in the past, I'll appreciate if someone 
>> can
> summarize the conclusion.
>>
>> Regards,
>>
>> --behcet
>>
>> ----- Original Message ----
>> From: McCann Peter-A001034 <[e-mail]>
>> To: [e-mail]
>> Sent: Thursday, January 4, 2007 4:03:26 PM
>> Subject: RE: [Mip4] I-D
>> ACTION:draft-ietf-mip4-mobike-connectivity-02.txt
>>
>>
>> Thanks Vijay for submitting a new version.
>>
>> Can the people who raised issues please check this version to see 
>> that
>
>> they were addressed?
>>
>> If there are no further issues we will proceed to send this version 
>> up
>
>> to the IESG.
>>
>> -Pete
>>
>> [e-mail] wrote:
>>> A New Internet-Draft is available from the on-line Internet-Drafts 
>>> directories.
>>> This draft is a work item of the Mobility for IPv4 Working Group of 
>>> the IETF.
>>>
>>>     Title        : Secure Connectivity and Mobility using Mobile
>> IPv4 and
>>>     MOBIKE Author(s)    : V. Devarapalli, P. Eronen
>>>     Filename    : draft-ietf-mip4-mobike-connectivity-02.txt
>>>     Pages        : 15
>>>     Date        : 2007-1-4
>>>
>>> Enterprise users require mobility and secure connectivity when they
>>>    roam and connect to the services offered in the enterprise.
> Secure
>>>    connectivity is required when the user connects to the enterprise
>>>    from an untrusted network.  Mobility is beneficial when the user
>>>    moves, either inside or outside the enterprise network, and
>>>    acquires a new IP address.  This document describes a solution
>>>    using Mobile IPv4 and mobility extensions to IKEv2 (MOBIKE) to
>>>    provide secure connectivity and mobility.
>>>
>>> A URL for this Internet-Draft is:
>>>
>> http://www.ietf.org/internet-drafts/draft-ietf-mip4-mobike-connectivi
>> t
>> y-
>> 02.txt
>>>
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>>
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