Internet DRAFT - draft-sheikh-true-mobility

draft-sheikh-true-mobility






Internet Draft                                M.Altamash Sheikh, 
Independent Submission                        GBTU,Lucknow,
Intended status: informational                Sanjay Jasola, 
Expires: April 10,2013                        Graphic Era Hill University 
                                              Deepak Panwar,
                                              Amity university Raj.
                                              october 10, 2012 
                                              
                                                    
                                          
         
                                                        

                      True mobility of MobileIPv6
                    draft-sheikh-true-mobility-03

 Abstract

     This document enhances the mobility of Mobile node's home agent 
     (HAMN) and correspondence node's home agent (HACN) along with 
     the mobility of Mobile Node (MN) and Correspondence Node (CN).
     Hence this document shows true and complete mobility of  
     MobileIPv6 protocol.



 Status of this Memo

     This Internet-Draft is submitted in full conformance with the
     provisions of BCP 78 and BCP 79.

     Internet-Drafts are working documents of the Internet Engineering
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     as reference material or to cite them other than as "work in 
     progress."

     This Internet-Draft will expire on Month date year


 Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.
   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

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   carefully, as they describe your rights and restrictions with 
   respect to this document.  Code Components extracted from this 
   document must include Simplified BSD License text as described in 
   Section 4.e of the Trust Legal Provisions and are provided without
   warranty as described in the Simplified BSD License.

  
Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . .3

   2.  Terminology. . . . . . . . . . . . . . . . . . . . . . . . .3

   3.  Various scenarios of Mobility . . . . . . . . ..............4
    3.1.When all entities are stationary...........................4
    3.2.When MN is mobile and CN,HAMN and HACN are stationary......4
    3.3.When CN becomes mobile and MN,HAMN,HACN are stationary.....5
    3.4.When MN and CN become mobile and HAMN, HACN are stationary.6
    3.5.When HACN becomes mobile and MN,HAMN,CN are stationary.....7
    3.6.When CN and HACN become mobile and MN,HAMN are stationary..8
    3.7.When HAMN become mobile MN,HACN,CN are stationary..........9
    3.8.When CN and HAMN become mobile and MN,HACN are stationary..10
    3.9.When HAMN and HACN become mobile and MN,CN are stationary..11
    3.10.When HACN,CN,MN are mobile and HAMN is stationary.........12
    3.11.When MN and HACN are mobile and CN,HAMN are stationary....13
    3.12.When CN,HAMN,HACN are mobile and MN is stationary.........14
    3.13.When HAMN and MN are mobile and CN,HACN are stationary....15
    3.14.When MN,HAMN,CN are mobile and HACN is stationary.........16
    3.15.When MN,HAMN,HACN are mobile and CN is stationary.........17
    3.16.When MN,HAMN,HACN,CN are mobile...........................18

   4. Security Considerations......................................18

   5. Assumptions..................................................19 
    
   6.IANA Considerations...........................................19  

   7.Acknowledgment................................................19  

   8.References....................................................19 
     
    8.1.Normative References.......................................19  
 
    8.2.Informative References.....................................19

   9.Authors' Addresses............................................20









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1.   Introduction

   In recent years user's data requirement has rapidly increased as 
   compared to past. This data requirement is mostly fulfilled by 
   Internet.Previously user was using wired technology to connect with
   Internet.With the advancement in the field of wireless and Internet
   technology,people have started using wireless devices.These wireless 
   device also supports user mobility. MobileIP is an Internet 
   Engineering Task Force(IETF) standard communications protocol that
   is designed to allow mobile device users to move from one network
   to another while maintaining a permanent IP address. 

   The MobileIP has several entities like MN, CN,HAMN and HACN.
   The Mobile IP protocol allows location-independent routing of IP 
   datagram on the Internet. Each mobile node is identified by its home
   address and not by its current location in the Internet. While 
   away from its home network, a mobile node is associated with a 
   care-of-address which identifies its current location and its home
   address is associated with the local endpoint of a tunnel to its 
   home agent. MobileIP specifies how a mobile node registers with its
   home agent and how the home agent routes datagram to the mobile node
   through the tunnel.  

   Mobile IP for IPv4 (MIPv4)is described in IETF RFC 3344,and updates
   are added in IETF RFC 4721.MobileIPv4 is a derivative protocol of 
   IPv4 RFC 791.As IPv4 protocol has only 32 bit of address space so
   it can accommodate only limited number of IP addresses. Hence same
   problem is faced by MIPv4 protocol. Secondly MIPv4 was not having
   route optimization procedure which was later updated in RFC 4721.
   Another version of IP introduced through RFC 2460.This new IP 
   protocol is known as IPv6 which has 128 bit of address space. With
   this amount of address space it is possible to allocate separate IP
   address to a single user's multiple devices.Mobility for IPv6 is 
   defined in RFC 3775 called as MobileIPv6.

   RFC3344 and RFC3775 assumes that home agent is a stationary router. 
   Hence home agents do not change its location with respect to time.
   This document assumes that home agent is a mobile router.Therefore
   a mobile router can changes its position with time.

   This document enhances the mobility of HAMN,HACN along with the 
   mobility of MN and CN.Therefore this document shows true mobility
   of MIPv6 protocol.How does a HAMN,HACN maintain  their connection 
   with MN,CN is out of scope of this document.

2. Terminology Used in This Document

     Mobile Node(MN)
     Home Agent of Moble Node(HAMN)
     Home Agent of Correspondance Node(HACN)
     Correspondence Node(CN)




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3.  Various scenarios of Mobility

    scenario 1: When all entities are stationary

     This is the case where all the entities are stationary. The MN 
     is connected to its Home agent HAMN with its home link and CN is
     connected to its own home agent HACN in home link. This is a very 
     normal case and has been discussed in RFC 3775.

    +++++++++++++++++++++++++++            ++++++++++++++++++++++++++
    +                         +            +                        +      
    +           _______       +            +              ______    +
    +           | HAMN  | <---+------------+--------->   |HACN |    +          
    +            _______      +            +             ______     +       
    +            /            +            +               /        +
    +     ___  /              +            +             /          +
    +    |___|                +            +         ___            +
    +   /___/                 +            +        |___|           +
    +    MN                   +            +       /___/            +
    +                         +            +        CN              +
    +++++++++++++++++++++++++++             +++++++++++++++++++++++++
          MN Network                                  CN Network

    scenario 2: when MN is mobile and HAMN,CN,HACN are stationary

     In this case the MN has became mobile and connected to a new 
     foreign network through foreign link. The rest of the 
     entities like HAMN, CN and HACN are stationary to their positions.

    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           |HAMN  | <----- +---------+----------->|HACN  |       +           
    +           _______         +         +            _______        +
    +               |           +         +                 /         +        
    +               |           +         +         ___  /            +
    +               |           +         +        |___|              +
    +               |           +         +       /___/               +
    +               |           +         +                           +
    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
          MN  Home Network                        CN Home Network
                    |
   +++++++++++++++++++++++++++++
   +                |          +
   +                |          +
   +                |          +
   +                |          +
   +              ____         +
   +             |____|        +
   +            /___ /         +
   +             MN            +
   +                           +
   +++++++++++++++++++++++++++++
          Foreign Network


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    scenario 3: When CN become mobile and MN,HAMN,HACN are 
                 stationary.

    
     In this case the MN is stationary and attached to its Home 
     network.The CN has becomes mobile and attaches itself to a 
     foreign network on a foreign link.




    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
    +                           +          +                          +
    +            _______        +          +            _______       +
    +           | HAMN | <----- +----------+----------->|HACN |       +           
    +           _______         +          +            _______       +
    +             /             +          +                |         +          
    +      ____                 +          +                |         +
    +     |___|                 +          +                |         +
    +    /___/                  +          +                |         +
    +     MN                   +           +                |         +
    +                           +          +                |         +
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
          MN Home Network                          CN Home | Network
                                                            |
                                                            |
                                                            |
                                                            |
                                                            |
                                                            |
                                           ++++++++++++++++++++++++++++
                                           +                |         +
                                           +                |         +
                                           +                |         +
                                           +                |         +
                                           +              ____        +
                                           +             |____|       +
                                           +            /___ /        +
                                           +              CN          +
                                           +                          +
                                           ++++++++++++++++++++++++++++
                                                    Foreign Network













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    scenario 4: When MN and CN become mobile and HAMN,HACN are 
                stationary.

     This is the case when both MN and CN are mobile but HAMN,HACN are 
     stationary. The MN becomes mobile and attached to a foreign 
     link.Similarly CN also becomes mobile and attached to a foreign
     link to a new foreign link.




    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           |HAMN  | <----- +---------+----------->|HACN |        +          
    +           _______         +         +            _______        +
    +               |           +         +               |           +         
    +               |           +         +               |           +
    +               |           +         +               |           +
    +               |           +         +               |           +
    +               |           +         +               |           +
    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
          MN  Home Network                        CN Home Network
                    |                                      |
                    |                                      |              
                    |                                      |
                    |                                      |
                    |                                      |              
                    |                                      |                                            
   +++++++++++++++++++++++++++++          +++++++++++++++++++++++++++++
   +                |          +          +               |           +
   +                |          +          +               |           +
   +                |                     +               |           +
   +                |          +          +               |           +
   +              ____         +          +              ____         +
   +             |____|        +          +              |___|        +  
   +            /___ /         +          +             /___/         +
   +             MN            +          +              CN           +
   +                           +          +                           +
   +                           +          +                           +
   +++++++++++++++++++++++++++++          +++++++++++++++++++++++++++++   
          Foreign Network                          Foreign Network





  






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scenario 5: When HACN becomes mobile and MN,HAMN,CN are stationary.

     In this case the HACN become mobile and moves to a new location.
     The rest of the entities MN,HAMN,CN are stationary to their 
     positions.



    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           | HAMN | <----- +-------- +----------->|HACN  |       +         
    +           _______         +         +            _______        +
    +             /             +         +          /     |          +         
    +      ____                 +         +   ___          |          +
    +     |___|                 +         +  |___|         |          +
    +    /___/                  +         + /___/          |          +
    +     MN                    +         +  CN            |          +
    +                           +         +                |          +
    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
          MN Home Network                       CN  Home| Network
                                                           |
                                                           |
                                                           |
                                                           |
                                                           |
                                                           |                                                           
                                          +++++++++++++++++++++++++++++
                                          +                |          +
                                          +                |          +
                                          +                |          +
                                          +                |          +
                                          +             ___Y____      +
                                          +             | HACN |      +
                                          +             |      |      +
                                          +              _______      +
                                          +                           +
                                          +                           +
                                          +                           +
                                          +++++++++++++++++++++++++++++
                                                  Foreign Network















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     scenario 6: When CN and HACN become mobile and MN,HAMN are 
                 stationary.

     This is the case when the CN and HACN become mobile and left their
     home networks.The rest of the two entities MN and HAMN are 
     stationary and are at there home network.Both entities maybe 
     attached to the same new network or different networks.






    +++++++++++++++++++++++++++++          +++++++++++++++++++++++++++
    +                           +          +                         +
    +            _______        +          +            _______      +
    +           |HAMN  | <----- +--------- +----------->|HACN |      +           
    +           _______         +          +            _______      +
    +             /             +          +             /  |        +         
    +      ____                 +          +                |        +
    +     |___|                 +          +          /     |        +
    +    /___/                  +          +         /      |        +
    +     MN                    +          +        /       |        +
    +                           +          +                |        +
    +++++++++++++++++++++++++++++          ++++++++/++++++++++++++++++
          MN Home Network                        / CN  Home| Network
                                                 /          |
                                                  /         |
                                                 /          |
                                                /           |
                                           ++++++++++++++++++++++++++++
                                           +      /         |         +
                                           +     /          |         +
                                           +    /           |         +
                                           +   ____        |          +
                                           +  |____|    ___Y____      +
                                           + /____/     |HACN  |      +
                                           +   CN       |      |      +
                                           +             ______       +
                                           +                          +
                                           +                          +
                                           +                          +
                                           ++++++++++++++++++++++++++++
                                                   Foreign Network












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    scenario 7: When HAMN becomes mobile and MN,HACN,CN are stationary.

     In this case the HAMN becomes mobile and moves towards a new 
     location. The rest of the three entities MN,CN,and HACN 
     are stationary in their network.







    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
    +                           +          +                          +
    +            _______        +          +            _______       +
    +           | HAMN | <----- +----------+----------->|HACN  |      +           
    +           _______         +          +            _______       +
    +           / |             +          +          /               +        
    +     ____    |             +          +      ___                 +
    +    |___|    |             +          +     |___|                +
    +   /___/     |             +          +    /___/                 +
    +    MN       |             +          +     CN                   +
    +             |             +          +                          +
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
          MN  Home| Network                        CN Home Network
                  |                                                 
                  |
                  |
                  |
    +++++++++++++++++++++++++++++
    +             |             +
    +             |             +
    +             |             +
    +             |             +
    +           __Y____         +
    +          | HAMN |         +
    +          |      |         +
    +           _______         +
    +                           +
    +                           +
    +                           +
    +++++++++++++++++++++++++++++
           Foreign Network










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scenario 8: When CN and HAMN become mobile and MN,HACN are 
            stationary.

     In this case the CN becomes mobile and moves to a new network. 
     Similarly the HAMN also becomes mobile and moves to a new 
     location.In this case the remaining entities MN and HACN are 
     stationary to their networks.



    +++++++++++++++++++++++++++++           +++++++++++++++++++++++++++
    +                           +           +                         +
    +            _______        +           +            _______      +
    +           | HAMN | <----- +---------- +----------->| HACN |     +           
    +           _______         +           +            _______      +
    +           / |             +           +               |         +          
    +     ____    |             +           +               |         +
    +    |___|    |             +           +               |         +
    +   /___/     |             +           +               |         +
    +     MN      |             +           +               |         +
    +             |             +           +               |         +
    +++++++++++++++++++++++++++++           +++++++++++++++++++++++++++
           MN Home| Network                           CN Home Network
                  |                                         |  
                  |                                         |
                  |                                         |
                  |                                         |
                  |                                         |
    +++++++++++++++++++++++++++++           +++++++++++++++++++++++++++
    +             |             +           +              |          +
    +             |             +           +              |          +
    +             |             +           +              |          +
    +             |             +           +              |          +
    +           __Y____         +           +             ___         +
    +          | HAMN |         +           +            |___|        +
    +          |      |         +           +           /___/         +
    +           _______         +           +            CN           +
    +                           +           +                         +
    +                           +           +                         +
    +                           +           +                         +
    +                           +           +                         +
    +++++++++++++++++++++++++++++           +++++++++++++++++++++++++++
           Foreign Network                          Foreign Network
   








                                 
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  scenario 9: When HAMN and HACN become mobile and MN, CN are 
              stationary.

     The HAMN and HACN become mobile and moved towards a new location 
     by leaving behind their previous locations.The MN and CN are 
     stationary to their positions.
 
   

 
    ++++++++++++++++++++++++++++            +++++++++++++++++++++++++++
    +                          +            +                         + 
    +                          +            +                         + 
    +                          +            +                         + 
    +            _______       +            +            _______      +
    +           |HAMN  | <---- +----------- +----------->|HACN  |     +          
    +           _______        +            +            _______      +
    +           / |            +            +            /  |         +         
    +     ____    |            +            +     ____      |         +
    +    |___|    |            +            +    |___|      |         +
    +   /___/     |            +            +   /___/       |         +
    +    MN       |            +            +    CN         |         +
    +             |            +            +               |         + 
    +             |            +            +               |         + 
    ++++++++++++++++++++++++++++            +++++++++++++++++++++++++++
           MN Home| Network                         CN Home Network
                  |                                         |
                  |                                         |  
                  |                                         |
    +++++++++++++++++++++++++++++           +++++++++++++++++++++++++++
    +             |             +           +               |         +
    +             |             +           +               |         +
    +             |             +           +               |         +
    +           __Y____         +           +              _Y_____    +
    +          |HAMN  |         +           +             |HACN  |    +
    +          |      |         +           +             |      |    +
    +           _______         +           +              _______    +
    +                           +           +                         +
    +                           +           +                         +
    +                           +           +                         +
    +                           +           +                         +
    +++++++++++++++++++++++++++++           +++++++++++++++++++++++++++
           Foreign Network                         Foreign Network
  







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    scenario 10:When HAMN is stationary and MN,CN,HACN are mobile.

    In this case only HAMN is stationary and attached to its home network 
    and rest of the entities like CN,MN, and HACN are mobile and move to
    a new location.   

   

 
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
    +                           +          +                          +
    +            _______        +          +            _______       +
    +           | HAMN | <----- +--------- +----------->|HACN  |      +          
    +           ________        +          +            --------      +
    +              |            +          +             /  |         +          
    +              |            +          +           /    |         +
    +              |            +          +          /     |         +
    +              |            +          +           /    |         +
    +              |            +          +          /     |         +
    +              |            +          +         /      |         +
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
          MN  Home |Network                        C N Home | Network
                   |                                /       |
                   |                               /        |
                   |                              /         |
   ++++++++++++++++++++++++++++++                  /        |
   +               |            +          +++++++/++++++++++++++++++++
   +               |            +          +     /          |         +
   +               |            +          +      /         |         +
   +               |            +          +     /          |         +
   +               Y            +          +   ___          |         +
   +               ___          +          +  |____|      ___Y___     +
   +              |___|         +          + /____/      | HACN |     +
   +             /___/          +          +   CN        |      |     +
   +              MN            +          +              ______      +
   +                            +          +                          +
   +                            +          +                          +
   +                            +          +                          +
   ++++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
           Foreign Network                          Foreign Network













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    scenario 11:When MN and HACN are mobile and HAMN,CN are stationary.

      In this case MN and HACN are mobile and move towards new 
      locations. The rest of entities like CN and HAMN are stationary to 
      their positions. 



    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           | HAMN | <----- +---------+----------->| HACN |       +          
    +           _______         +         +            _______        +
    +              |            +         +          /     |          +          
    +              |            +         +   ___          |          +
    +              |            +         +  |___|         |          +
    +              |            +         + /___/          |          +
    +              |            +         +  CN            |          +
    +              |            +         +                |          +
    +++++++++++++++++++++++++++++         ++++++++++++++++++++++++++++
            MN Home Network                         CN Home| Network
                   |                                       |
                   |                                       |
                   |                                       |
                   |                                       |
                   |                                       |
                   |                                       |
                   |                                       |
                   |                                       |
     +++++++++++++++++++++++++++++         ++++++++++++++++++++++++++++
     +             |             +         +                |         +
     +             |             +         +                |         +
     +             |             +         +                |         +
     +             |             +         +                |         +
     +           ____            +         +             ___Y____     +
     +           |___|           +         +             |HACN  |     +
     +          /___/            +         +             |      |     +
     +           MN              +         +              _______     +
     +                           +         +                          +
     +                           +         +                          +
     +                           +         +                          +
     +++++++++++++++++++++++++++++         ++++++++++++++++++++++++++++
         Foreign Network                          Foreign Network











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    scenario 12: When HAMN,HACN and CN are mobile and MN is stationary.

     In this case MN is stationary to its home network. The other 
     entities like HAMN,CN and HACN are mobile and haved moved towards 
     new locations.




    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           | HAMN | <----- +---------+----------->|HACN  |       +           
    +           _______         +         +            _______        +
    +     ____    /|            +         +             /  |          +          
    +     |___|    |            +         +            /   |          +
    +    /___/     |            +         +           /    |          +
    +     MN       |            +         +          /     |          +
    +              |            +         +          /     |          +
    +              |            +         +         /      |          +
    +              |            +         +        /       |          +
    +++++++++++++++++++++++++++++         ++++++++/++++++++++++++++++++
          MN  Home Network                        / CN Home| Network
                   |                              /        |
                   |                             /         |
                   |                            /          |
                   |                           /           |
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
    +              |            +          +      /         |         +
    +              |            +          +     /          |         +
    +              |            +          +     /          |         +
    +              |            +          +     /          |         +
    +              |            +          +    /           |         +
    +              |            +          +   ____         |         +
    +              Y            +          +  |____|     ___Y__       +
    +           _______         +          + /____/     |HAMN  |      +
    +           |HAMN |         +          +   CN       |      |      +
    +           |     |         +          +             ______       +
    +            ______         +          +                          +
    +                           +          +                          +
    +                           +          +                          +
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++           
            Foreign Network                        Foreign Network












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    scenario 13:When HAMN and MN are mobile and HACN,CN are stationary.

  
     In this case MN and HAMN become mobile and move toward 
     the new locations.The other two entities like CN and HACN are 
     stationary to their locations.

    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           | HAMN | <----- +-------- +----------->|HACN  |       +           
    +           _______         +         +            _______        +
    +               |           +         +                 /         +         
    +               |           +         +         ___  /            +
    +               |           +         +        |___|              +
    +               |           +         +       /___/               +
    +               |           +         +        CN                 +
    +               |           +         +                           +
    +               |           +         +                           +
    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
          MN Home Network                         CN Home Network
                    |
                    |
                    |
                    |
                    |
                    |
                    |
   +++++++++++++++++++++++++++++
   +                |          +
   +                |          +
   +                |          +
   +                Y          +
   +    ____     ______        +
   +   |____|    |HAMN |       +
   +  /___ /     |     |       +
   +   MN        ______        +
   +                           +
   +                           +
   +                           +
   +++++++++++++++++++++++++++++
           Foreign Network                        











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    scenario 14:When MN,HAMN,CN are mobile and only HACN is stationary.

     In this scenario all entities like MN,CN and HAMN are mobile 
     and move towards the new locations. HACN is stationary to its own
     position.



    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
    +                           +         +                           +
    +                           +         +                           +
    +                           +         +                           +
    +                           +         +                           +
    +                           +         +                           +
    +            _______        +         +            _______        +
    +           |HAMN  | <----- +-------- +----------->|HACN |        +         
    +           _______         +         +            _______        +
    +              /|           +         +                |          +        
    +            /  |           +         +                |          +
    +           /   |           +         +                |          +
    +            /  |           +         +                |          +
    +++++++++++++++++++++++++++++         +++++++++++++++++++++++++++++
          MN Home Network                           CN Home| Network
              /     |                                      |
               /    |                                      |
               /    |                                      |
               /    |                                      |
              /     |                                      |
             /      |                                      |
   +++++++++++++++++++++++++++++          +++++++++++++++++++++++++++++
   +          /     |          +          +                |          +     
   +         /      |          +          +                |          +
   +        /       |          +          +                |          +  
   +                Y          +          +                |          +   
   +    ____     ______        +          +                Y          +
   +   |____|    |HAMN |       +          +                __         +  
   +  /___ /     |     |       +          +               |___|       +
   +   MN       ______         +          +              /___/        + 
   +                           +          +                CN         +
   +                           +          +                           +
   +                           +          +                           +
   +++++++++++++++++++++++++++++          +++++++++++++++++++++++++++++
           Foreign Network                         Foreign Network











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    scenario 15:When CN is stationary and MN,HAMN,HACN are mobile.

     In this scenario only CN is stationary to its home network and 
     rest of the entities like MN,HAMN and HACN are mobile and moves 
     towards new location.



    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
    +                           +          +                          +
    +                           +          +                          +
    +                           +          +                          +
    +                           +          +                          +
    +                           +          +                          +
    +            _______        +          +            _______       +
    +           | HAMN| <-------+----------+----------->|HACN |       +         
    +           _______         +          +            _______       +
    +              /|           +          +            /   |         +          
    +             / |           +          +     ___/       |         +
    +            /  |           +          +    |___|       |         +
    +           /   |           +          +   /___/        |         +
    +            /  |           +          +    CN         |          +
    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
           MN Home Network                           CN Home| Network
              /     |                                       |
               /    |                                       |
              /     |                                       |
              /     |                                       |
              /     |                                       |
             /      |                                       |
   +++++++++++++++++++++++++++++           ++++++++++++++++++++++++++++
   +          /     |          +           +                |         +     
   +         /      |          +           +                |         +
   +        /       |          +           +                |         +  
   +                Y          +           +                |         +   
   +    ____     ______        +           +                Y         +
   +   |____|    |HAMN |       +           +              ______      +  
   +  /___ /     |     |       +           +              |HACN |     +
   +   MN        ______        +           +              |     |     + 
   +                           +           +               ______     +
   +                           +           +                          +
   +                           +           +                          +
   +                           +           +                          +
   +++++++++++++++++++++++++++++           ++++++++++++++++++++++++++++
           Foreign Network                         Foreign Network
 


  






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scenario 16: When all entities are mobile 

    This is the scenario where all the entities are mobile and have moved 
    towards new locations.In this case no entity is stationary. 

    +++++++++++++++++++++++++++++          ++++++++++++++++++++++++++++
    +                           +          +                          +
    +            _______        +          +            _______       +
    +           | HAMN | <----- +----------+----------->|HACN  |      +           
    +           _______         +          +            _______       +
    +              /|           +          +            /   |         +              
    +            /  |           +          +          /     |         +
    +           /   |           +          +         /      |         +
    +            /  |           +          +          /     |         +
    +++++++++++++++++++++++++++++          ++++++++++/+++++++++++++++++
          MN  Home Network                          /CN Home| Network
              /     |                                       |
               /    |                                /      |
              /     |                               /       |
             /      |                              /        |
   +++++++++++++++++++++++++++++           ++++++++/+++++++++++++++++++
   +          /     |          +           +      /         |         +     
   +         /      |          +           +     /          |         +
   +        /       |          +           +      /         |         +  
   +                Y          +           +     /          |         +   
   +    ____     ______        +           +    /           Y         +
   +   |____|    |HAMN |       +           +    ___       ______      +  
   +  /___ /     |     |       +           +   |___|      |HACN |     +
   +   MN        ______        +           +  /___/       |     |     +
   +                           +           +   CN                     +
   +                           +           +                          +
   +++++++++++++++++++++++++++++           ++++++++++++++++++++++++++++
           Foreign Network                         Foreign Network

 4.  Security Considerations
    
      This draft shows the various scenarios when home agent is a 
      mobile router.In cases of 3.1,3.2,3.3,3.4 the security asso-
      ciation will be as defined by RFC [3775]. For rest of the 
      mobility cases an entirely new security mechanism or a modified
      version of IPSec can be defined.

      As all the previously defined security mechanismlike IPSec 
      considered router to be a stationary device.In this document 
      we assumed that home agent(HAMN,HACN)is a mobile router.Due to
      router's mobility security is an issue of concern.In RFC3775 
      authentication like key exchangeof MN,CN were possible because
      of stationary router.Once the router itself become mobile and
      changes its location with respect to time so the authentication
      of MN,CN can not be executed properly.Due to mobility router it
      self having various kinds of security issues.Hence there is a
      need to revise all the security mechanism stated so far to 
      support router mobility.  


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 5.  Asumptions

    5.1.HAMN,HACN is a mobile router.
    5.2.Foreign network whic is visited by MN,HAMN,CN or HACN may be 
        same or maybe different.
    5.3.How does a HAMN,HACN maintain their connection with MN,CN is out
        of the scope of this document.


 6.  IANA Considerations
 
     This document has no actions for IANA.

 7.  Acknowledgment
     This work is supported by Dr.Karan singh,Dr. Rajesh Mishra,and 
     Arun singh from school of ICT,Gautam Buddha University. Gr.Noida.   

 8.  References 

 
     8.1. Normative References


     [RFC 3344]  Perkins,C.,Ed.,"IP Mobility Support for IPv4",RFC 3344
                 August 2002.

     [RFC 4721]  Calhoun,J.,Bharatia,"Mobile IPv4 Challenge/Response
                 Extensions(Revised)",RFC 4721,January 2007.
          
     [RFC 791]   Postel, J., "Internet Protocol", STD 5, RFC 791, 
                 September 1981.

     [RFC 2460]  Deering,S.,Hinden, R.,"Internet Protocol, Version 6 
                 (IPv6)"RFC 2460,December 1998.

     [RFC 3775]  Johnson, D., Perkins, C., and J. Arkko, "Mobility 
                 Support in IPv6", RFC 3775, June 2004.


      8.2.  Informative References


     [Sax06]     Saxena,P.,C,Jasola,S., "A New Model For Mobility Of                            
                 correspondence Node in MobileIPv6" Journal of CSI Vol.
                 36.No.1March2006,pp.20-28.

     [Sax06]     Saxena,P.,C.,Jasola,S., "Performance of intelligent 
                 MobileIPv6" Computer Standards & interfaces Volume 28, 
                 Issue 6, September 2006,pages 737-751

     [Sax06]     Saxena,P.,C.,Jasola,S., "Mobility management on IP 
                 based Networks" IETE Technical review, Vol23. No1; Jan-
                 Feb2006,pp.35-46.
   


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 9.   Authors' Addresses

         Mohd. Altamash Sheikh
         240, CSJM hostel
         Gautam Buhddha University.
         Greater Noida,India.
         Phone:+91 9634853794      
         Email: altsheikh@gmail.com

         Prof.Sanjay Jasola
         Graphic Era Hill University
         Dehradoon Uttranchal
         Phone No.0135-2642799      
         Email: sjasola@yahoo.com

         Deepak Panwar
         14,gopalbari,Amity House
         Ajmer road,Jaipur,
         Amity University,India
         Phone:+91 8290313963
         E-mail:deepakpanwar03@gmail.com
        



























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