NAME

CN-4-4-2 - Home Nonce Index error - De-Registration from the foreign link

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
        |       |       |       |       |
        |------------------------------>| 14.Echo Request(Home Address option)
        |       |       |       |       |
        |<------------------------------| 15.Echo Reply(Type2 Routing Header)
        |       |       |       |       |
        |-------------->|-------------->| 16.HoTI
        |       |       |       |       |
        |<--------------|<--------------| 17.HoT
        |       |       |       |       |
        |------------------------------>| 18.BU(Home Nonce Index=0xffff)
        |       |       |       |       |
        |<------------------------------| 19.BA(Status=136) (*1)
        |       |       |       |       |
        |------------------------------>| 20.Echo Request(Home Address option)
        |       |       |       |       |
        |<------------------------------| 21.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
14. Send ICMP Echo Request(Home Address option).
15. Receive ICMP Echo Reply(Type2 Routing Header).
16. Send Home Test Init.
17. Receive Home Test.
18. Send Binding Update(Home Nonce Index=0xffff).
19. Receive Binding Acknowledgement(Status=136).
20. Send ICMP Echo Request(Home Address option).
21. Receive ICMP Echo Reply(Type2 Routing Header).

Packet Format
18. Binding Update
19. Binding Acknowledgement(No Binding Authorization Data option)
      IPv6 header
      Routing header (type 2)
         home address
      Mobility header
         Binding Acknowledgement
            (Not include Binding Authorization Data option)
20. ICMP_Echo Request(Home Address option)
21. ICMP Echo Reply(Type2 Routing Header)

JUDGEMENT

(*1) MN receives Binding Acknowledgement.
  - The Destination Address is set to the Source Address of the Binding Update (MN care-of address).
  - The Status field is set to 136.
  - Binding Authorization Data option is not included.

(*2) MN receives ICMP Echo Reply. (Binding Cache entry is not deleted.)
  - The Destination Address is set to 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 receiving node no longer recognizes the Home Nonce Index
   value, Care-of Nonce Index value, or both values from the Binding
   Update, then the receiving node MUST send back a Binding
   Acknowledgement with status code 136, 137, or 138, respectively.

9.5.4 Sending Binding Acknowledgements

   If the Status field in the Binding Acknowledgement contains the value
   136 (expired home nonce index), 137 (expired care-of nonce index), or
   138 (expired nonces) then the message MUST NOT include the Binding
   Authorization Data mobility option.  Otherwise, the Binding
   Authorization Data mobility option MUST be included, and MUST meet
   the specific authentication requirements for Binding Acknowledgements
   as defined in Section 5.2.