Title

  Test IKEv2.EN.R.1.2.8.1: AUTHENTICATION_FAILED
  Part B Invalid Auth method (ADVANCED)


Purpose

  To verify an IKEv2 device properly handles AUTHENTICATION_FAILED message.


References

  * [RFC 4306] - Sections 3.10.1


Test Setup

  * Network Topology
      Connect the devices according to the Common Topology.
  * Configuration
      In each part, configure the devices according to the Common Configuration.
  * Pre-Sequence and Cleanup Sequence
      IKEv2 on the NUT is disabled after each part.


Procedure

   NUT                  TN1
(End-Node)           (End-Node)
    |                    |
    |<-------------------| IKE_SA_INIT request (HDR, SAi1, KEi, Ni)
    |                    | (Packet #1)
    |------------------->| IKE_SA_INIT Response (HDR, SAr1, KEr, Nr)
    |                    | (Judgement #1)
    |                    |
    |<-------------------| IKE_AUTH request (HDR, SK {IDi, AUTH, N, SAi2, TSi, TSr})
    |                    | (Packet #2)
    |---------X          | IKE_AUTH Response (HDR, SK {IDr, AUTH, N, SAr2, TSi, TSr})
    |                    |   or
    |------------------->| IKE_AUTH Response (HDR, N(AUTHENTICATION_FAILED))
    |                    | (Judgement #2)
    |                    |
    V                    V

N: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1
Packet #2 See below
Packet #2 (Part B): IKE_AUTH request
IPv6 Header Same as the Common Packet #3
UDP Header Same as the Common Packet #3
IKEv2 Header Same as the Common Packet #3
E Payload Same as the Common Packet #3
IDi Payload Same as the Common Packet #3
AUTH Payload Other fields are same as the Common Packet #3
Payload Length 28
Auth Method 1 (RSA_DS)
Authentication Data Same data as the common packet #3
(caluculated by using SK_MIC)
N Payload Same as the Common Packet #3
SA Payload Same as the Common Packet #3
TSi Payload Same as the Common Packet #3
TSr Payload Same as the Common Packet #3
  Part B Invalid Auth method (ADVANCED)
     5. TN1 starts to negotiate with NUT by sending IKE_SA_INIT request.
     6. Observe the messages transmitted on Link A.
     7. After reception of IKE_SA_INIT response from the NUT, TN1 transmits an IKE_AUTH
         request which has an invalid Auth Method in AUTH payload to the NUT.
     8. Observe the messages transmitted on Link A.


Observable Result

  Part B
       Step 6: Judgment #1
       The NUT transmits an IKE_SA_INIT response including "ENCR_3DES",
       "PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as accepted
       algorithms.
       Step 8: Judgment #2
       The NUT does not transmit an IKE_AUTH response or transmits an IKE_AUTH response
       with Notify payload of type AUTHENTICATION_FAILED without encryption to the TN1.


Possible Problems

  * None.