NAME

CN-1-3 - Normal Test - Route Optimization

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,Type2 Routing Header)
        |       |       |       |       |
        |-------------->|-------------->| 14.Echo Request
        |       |       |       |       |
        |<------------------------------| 15.Echo Reply(Type2 Routing Header) (*1)
        |       |       |       |       |
        |------------------------------>| 16.Echo Request(Home Address option)
        |       |       |       |       |
        |<------------------------------| 17.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,Type2 Routing Header).
14. Send ICMP Echo Request.
15. Receive ICMP Echo Reply(Type2 Routing Header).
16. Send ICMP Echo Request(Home Address option).
17. Receive ICMP Echo Reply(Type2 Routing Header).

Packet Format
14. ICMP Echo Request
15. ICMP Echo Reply(Type2 Routing Header)
16. ICMP_Echo Request(Home Address option)
17. ICMP Echo Reply(Type2 Routing Header)

JUDGEMENT

(*1) MN receives ICMP Echo Reply.
  - The Destination Address is set to the Source Address of the Binding Update (MN care-of address).
  - Type 2 Routing Header is included.
  - The Home Address field of Type 2 Routing Header is set to MN home address.

(*2) MN receives ICMP Echo Reply.
  - The Destination Address is set to the Source Address of the Binding Update (MN care-of address).
  - Type 2 Routing Header is included.
  - The Home Address field of Type 2 Routing Header is set to MN home address.

REFERENCE

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

9.3.1 Receiving Packets with Home Address Option

   Mobile nodes can include a Home Address destination option in a
   packet if they believe the correspondent node has a Binding Cache
   entry for the home address of a mobile node.  Packets containing a
   Home Address option MUST be dropped if there is no corresponding
   Binding Cache entry.  A corresponding Binding Cache entry MUST have
   the same home address as appears in the Home Address destination
   option, and the currently registered care-of address MUST be equal to
   the source address of the packet.  These tests MUST NOT be done for
   packets that contain a Home Address option and a Binding Update.

9.3.2 Sending Packets to a Mobile Node

   Before sending any packet, the sending node SHOULD examine its
   Binding Cache for an entry for the destination address to which the
   packet is being sent.  If the sending node has a Binding Cache entry
   for this address, the sending node SHOULD use a type 2 routing header
   to route the packet to this mobile node (the destination node) by way
   of its care-of address.  However, the mobile node MUST not do this in
   the following cases: