S3-99372

E-mail exchange to Presentation on Mobile IP operations in UMTS
Compilation: 3GPP support

     My question is still: does this deal with step 1 of MIP TR (support of  
     MIP service on top of GPRS) or with step 1 and 3.
     If this deals with step 3 (use of MIP within the CN, even for non MIP  
     able UE), is UMTS specific security still relevant in this context?
     Best regards
        Laurent T.

==========================
Author:  acasati@LUCENT.COM
Date:    22/10/99 12:13

This presentation is related to a Liaison statement the MIP  
ad hoc group issued towards S3 at the beginning of Y99
on the support of an extra level of authentication  
in Mobile IP. This basically was to make S3 aware that  
in addition to regular UMTS authentication, Mobile IP  
would also use it's own authentication mechanisms. This
would allow IP level roaming capabilities (spanning wireless and wireline  
networks)  
      
Regards
      
alessio

===========================

From: Laurent.Thiebaut@alcatel.fr [mailto:Laurent.Thiebaut@alcatel.fr] 
     Would it be possible to know whether this presentation describes:
        1) support of MIP service for UMTS user: step 1 of the MIP  
     technical report that has been the object of agreed CRs to 23.060 and  
     23.121.
       
     or
      
        2) proposal (feasibility study) of MIP introduction as a protocol  
     between nodes of the PS backbone to handle user mobility within a  
     PLMN. This corresponds to step3 of the MIP TR that has not been  
     presented to S2 for agreement / rejection.
      
     or  
      
        3) both 1) and 2)
      
---------------------------------------------------------------------------
      V    Laurent Thiebaut      tel: +33 (0)1 3077 0645
A L C A T E L                    e.mail:laurent.thiebaut@alcatel.fr   
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> -----Original Message-----
> From: Ansgar Bergmann  
> Sent: 20 October 1999 17:36
> To:   '3gpp_tsg_sa_wg2@list.3gpp.org'; Alain Sultan  
> Cc:   '3gpp_tsg_sa_wg3@list.3gpp.org'
> Subject:      Presentation on Mobile IP operations in UMTS  
>  
> Dear S2 Delegates,
> You have received LS S3-99339 from S3, answering the LS in S2-99587 =  
> S3-99316: S3 accepted with delight the offer from S2 to make a
> presentation  on Mobile IP operations in UMTS to S3, and proposed the 28th  
> of October 1999 (during S3#7).
> Unfortunately, S3#7 will have to be restricted to 2 days, 26-27 October.  
> With that, there would be most probably no time for a presentation in
> appropriate depth.
> Also, S2 will have a meeting with colliding date.  
>  
> Therefore it seems more appropriate to move that presentation, for example  
> to S3#8 (16-19 November 1999, Sophia Antipolis).
> I would propose that we discuss the exact date directly with Bengt-Åke  
> Lindholm instead of trying to agree on a date by exchange of furhter
> liaison statements between S2 and S3.  
> Best regards
> Ansgar Bergmann