NAME

CN-2-1-5 - Receiving HoTI - Invalid Mobility Header Payload Proto

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.HoTI(Mobility Header Payload Proto = 0xff)
        |       |       |       |       |
        |<--------------|<--------------| 9.ICMP Parameter Problem (Code 0) (*1)
        |       |       |       |       |

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 Home Test Init(Mobility Header Payload Proto = 0xff).
9. Receive ICMP Parameter Problem(Code 0).

Packet Format
8. Home Test Init
9. ICMP Parameter Problem(Code 0)

JUDGEMENT

(*1) MN receives ICMP Parameter Problem (Code 0).
  - The Pointer field is set to 40.

REFERENCE

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

9.2 Processing Mobility Headers

   Mobility Header processing MUST observe the following rules:

      (snip)

   o  The Payload Proto field MUST be IPPROTO_NONE (59 decimal).
      Otherwise, the node MUST discard the message and SHOULD send ICMP
      Parameter Problem, Code 0, directly to the Source Address of the
      packet as specified in RFC 2463 [14].  Thus no Binding Cache
      information is used in sending the ICMP message.  The Pointer
      field in the ICMP message SHOULD point at the Payload Proto field.