NAME

CN-5-3-5 - (H)bit ON - with Nonce (Re-Registration)

TARGET

Host

TOPOLOGY

       HA----------R2----------R1----------R0
       |           |           |           |
       |           |           |           |
       |----       |----       |----MN     |----CN(NUT)
       |           |           |           |
       |           |           |           |
   Home Link     Link2       Link1       Link0
               (Foreign)   (Foreign)

Link0	3ffe:501:ffff:100::/64
Link1	3ffe:501:ffff:101::/64	Foreign Link
Link2	3ffe:501:ffff:102::/64	Foreign Link 2
Home Link	3ffe:501:ffff:104::/64	Home Link
CN(NUT)	3ffe:501:ffff:100::X Auto Configuration (InterfaceID)
MN(in Link1)	3ffe:501:ffff:101::Y Increased in each test (InterfaceID)	MN care-of address
MN(in Home Link)	3ffe:501:ffff:104::Y Increased in each test (InterfaceID)	MN home address
R0(Link0)	3ffe:501:ffff:100::1
R1(Link1)	3ffe:501:ffff:101::1
R2(Link2)	3ffe:501:ffff:102::1
HA(Home Link)	3ffe:501:ffff:104::1

INITIALIZATION

Reboot NUT (reboot.rmt)

TEST PROCEDURE

       MN      R1      HA      R0     CN(NUT) 
        |       |       |       |       |
        |       |       |       |------>| 1.RA
        |       |       |       |       |
        |       |       |       |------>| 2.NS
        |       |       |       |       |
        |       |       |       |<------| 3.NA
        |       |       |       |       |
        |-------------->|-------------->| 4.Echo Request
        |       |       |       |       |
        |<--------------|<--------------| 5.Echo Reply
        |       |       |       |       |
        |------------------------------>| 6.Echo Request(Home Address option)
        |       |       |       |       |
        |<------------------------------| 7.BE(Status=1)
        |       |       |       |       |
        |------------------------------>| 8.CoTI
        |       |       |       |       |
        |-------------->|-------------->| 9.HoTI
        |       |       |       |       |
        |<------------------------------| 10.CoT
        |       |       |       |       |
        |<--------------|<--------------| 11.HoT
        |       |       |       |       |
        |------------------------------>| 12.BU
        |       |       |       |       |
        |<------------------------------| 13.BA(Status=0)
        |       |       |       |       |
        |------------------------------>| 14.Echo Request(Home Address option)
        |       |       |       |       |
        |<------------------------------| 15.Echo Reply(Type2 Routing Header)
        |       |       |       |       |
        |------------------------------>| 16.CoTI
        |       |       |       |       |
        |-------------->|-------------->| 17.HoTI
        |       |       |       |       |
        |<------------------------------| 18.CoT
        |       |       |       |       |
        |<--------------|<--------------| 19.HoT
        |       |       |       |       |
        |------------------------------>| 20.BU((H)bit ON, New Lifetime=4s)
        |       |       |       |       |
        |<------------------------------| 21.BA(Status=139) or T.O.(*1)
        |       |       |       |       |
        |       |       |       |       | (Expire New Lifetime)
        |       |       |       |       |
        |------------------------------>| 22.Echo Request(Home Address option)
        |       |       |       |       |
        |<------------------------------| 23.Echo Reply(Type2 Routing Header) (*2)
        |       |       |       |       |

1. Send Router Advertisement.
2. Send Neighbor Solicitation.
3. Receive Neighbor Advertisement.
4. Send ICMP Echo Request.
5. Receive ICMP Echo Reply.
6. Send ICMP Echo Request(Home Address option).
7. Receive Binding Error(Status=1).
8. Send Care-of Test Init
9. Send Home Test Init
10. Receive Care-of Test.
11. Receive Home Test.
12. Send Binding Update.
13. Receive Binding Acknowledgement(Status=0).
14. Send ICMP Echo Request(Home Address option).
15. Receive ICMP Echo Reply(Type 2 routing header).
16. Send Care-of Test Init
17. Send Home Test Init
18. Receive Care-of Test.
19. Receive Home Test.
20. Send Binding Update((H)bit ON, New Lifetime=4s).
21. Receive Binding Acknowledgement(Status=139) or Expire BA timer.
   *Expire New Lifetime
22. Send ICMP Echo Request(Home Address option).
23. Receive ICMP Echo Reply(Type 2 routing header).

Packet Format
20. Binding Update
21. Binding Acknowledgement
22. ICMP_Echo Request(Home Address option)
23. ICMP Echo Reply(Type2 Routing Header)

JUDGEMENT

(*1) MN receives neither Binding Acknowledgement nor Binding Error.

(*2) MN receives ICMP Echo Reply.
 (The lifetime of the Binding Cache entry is not initialized by the second registration.)
  - The Destination Address is set to the Source Address of the Binding Update (MN care-of address).
  - Type 2 Routing Header is included.

REFERENCE

(draft-ietf-mobileip-ipv6-24.txt)

9.5.1 Receiving Binding Updates

   If the Home Registration (H) bit is set, the Nonce Indices mobility
   option MUST NOT be present.

      (snip)

   If a binding already exists for the given home address and the home
   registration flag has a different value than the Home Registration
   (H) bit in the Binding Update, then the receiving node MUST send back
   a Binding Acknowledgement with status code 139 (registration type
   change disallowed).  The home registration flag stored in the Binding
   Cache entry MUST NOT be changed.

      (snip)

   For packets carrying Binding Updates that fail to satisfy all of
   these tests for any reason other than insufficiency of the Sequence
   Number, registration type change, or expired nonce index values, they
   MUST be silently discarded.