NAME

MN-2-1-1-2-019 - Sending HoTI (when receiving the tunneled packet after the expiration of correspondent registration)


TARGET

Host


TOPOLOGY

                    
                                  |
                                  R       CN0
                                  |        |
                     -----+-------+--------+---------------- LinkZ
                          |
                          R2                      NUTY
                          |                         |
                     -----+-------+-----------------+------- LinkY
                                  |
                                  R1              NUTX
                                  |                 |
                     -----+-------+-----------------+------- LinkX
                          |
                         HA0             Node0    NUT0
                          |               |         |
    ----------------------+---------------+---------+------- Link0
                    
Link0 3ffe:501:ffff:100::/64 home link
LinkX 3ffe:501:ffff:102::/64  
LinkY 3ffe:501:ffff:103::/64  
LinkZ 3ffe:501:ffff:104::/64  
HA0(Link0) 3ffe:501:ffff:100:200:ff:fe00:a0a0  
Node0(Link0) 3ffe:501:ffff:100:200:ff:fe00:a3a3  
R1(LinkX) 3ffe:501:ffff:102:200:ff:fe00:a4a4  
R2(LinkY) 3ffe:501:ffff:103:200:ff:fe00:a6a6  
CN0(LinkZ) 3ffe:501:ffff:104:200:ff:fe00:a8a8  


INITIALIZATION

 1. Selection Option
    - Route Optimization support: YES
                    
 2. Position of Mobile Node
                    
       HA0     NUT0     R1      R2      CN0
        |       |       |       |        |
        | ----> |       |       |        |  1.Router Advertisement
        |       |       |       |        |
        |      NUTX     |       |        |
        |       |       |       |        |
        |       | <---- |       |        |  2.Router Advertisement
        |       |       |       |        |
        | <---- |       |       |        |  3.Neighbor Solicitations
        |       |       |       |        |  4.(no reply:3 seconds)
        |       |       |       |        |
        | <---- |       |       |        |  5.Binding Update
        | ----> |       |       |        |  6.Binding Acknowledgement
        |       |       |       |        |
                    
        1. Send Router Advertisement. (HA0 -> HA0_allnode_multi)
        2. Send Router Advertisement. (R1 -> R1_allnode_multi)
        3. Receive Neighbor Solicitations. (NUT0 -> HA0)
        4. (no reply)
            # Wait during a maximum of 3 seconds(RFC2461).
        5. Receive Binding Update to HA0. (NUTX -> HA0)
        6. Send Binding Acknowledgement. (NUTX -> HA0)


TEST PROCEDURE

                    
       HA0     NUTX     R1      R2      CN0
        |       |       |       |        |
        | ====> | <--------------------- |  1.ICMP Echo Request
        |       |       |       |        |
        | <==== | ---------------------> |  2.Home Test Init
        |       | ---------------------> |  3.Care-of Test Init
        |       | <--------------------- |  4.Care-of Test
        | ====> | <--------------------- |  5.Home Test
        |       |       |       |        |
        | <==== | ---------------------> |  6.ICMP Echo Reply
        |       | ---------------------> |  7.Binding Update
        |       | ---------------------> |  8.ICMP Echo Reply
        |       |       |       |        |
        |       |       |       |        |  9.(wait)
        |       |       |       |        |
        | ====> | <--------------------- | 10.ICMP Echo Request
        |       |       |       |        |
        | <==== | ---------------------> | 11.Home Test Init (*1)
        |       | ---------------------> | 12.Care-of Test Init
        |       |       |       |        |
                    
        1. Send ICMP Echo Request. (out: HA0 -> NUTX, in: CN0 -> NUT0)
        2. Receive Home Test Init. (out: NUTX -> HA0, in: NUT0 -> CN0)
        3. Receive Care-of Test Init. (NUTX -> CN0)
        4. Send Care-of Test. (CN0 -> NUTX)
        5. Send Home Test. (out: HA0 -> NUTX, in: CN0 -> NUT0)
        6. Receive ICMP Echo Reply or [8]. (out: NUTX -> HA0, in: NUT0 -> CN0)
        7. Receive Binding Update to CN0. (NUTX -> CN0)
        8. [6] or Receive ICMP Echo Reply. (NUTX -> CN0)
            # Home Address destination option is included.
        9. (wait)
            # CN0 registration expired.
       10. Send ICMP Echo Request. (out: HA0 -> NUTX, in: CN0 -> NUT0)
       11. Receive Home Test Init. (out: NUTX -> HA0, in: NUT0 -> CN0)
       12. Receive Care-of Test Init. (NUTX -> CN0)
                    
        Packet Format is:
          11.Home Test Init
                    


JUDGEMENT

 (*1) PASS: HA0 receives the Home Test Init.


REFERENCE

                    
(draft-ietf-mobileip-ipv6-24.txt)
                    
11.6 Return Routability Procedure
                    
   This section defines the rules that the mobile node must follow when
   performing the return routability procedure.  Section 11.7.2
   describes the rules when the return routability procedure needs to be
   initiated.
                    
                    
11.7.2 Correspondent Registration
                    
(snip)
                    
   For nodes that do not appear in the mobile node's Binding Update
   List, the mobile node MAY initiate a correspondent registration at
   any time after sending the Binding Update to its home agent.
   Considerations regarding when (and if) to initiate the procedure
   depend on the specific movement and traffic patterns of the mobile
   node and are outside the scope of this document.
                    
   In addition, the mobile node MAY initiate the procedure in response
   to receiving a packet that meets all of the following tests:
                    
   o  The packet was tunneled using IPv6 encapsulation.
                    
   o  The Destination Address in the tunnel (outer) IPv6 header is equal
      to any of the mobile node's care-of addresses.
                    
   o  The Destination Address in the original (inner) IPv6 header is
      equal to one of the mobile node's home addresses.
                    
   o  The Source Address in the tunnel (outer) IPv6 header differs from
      the Source Address in the original (inner) IPv6 header.
                    
   o  The packet does not contain a Home Test, Home Test Init, Care-of
      Test, or Care-of Test Init message.