Title

  Test IKEv2.EN.R.1.1.3.4: Receiving Liveness check
  Part A: (BASIC)


Purpose

  To verify that an IKEv2 device can respond to INFORMATIONAL request for liveness check.


References

  * [RFC 4306] - Sections 2.1, 2.2 and 2.4


Test Setup

  * Network Topology
      Connect the devices according to the Common Topology.
  * Configuration
      In each part, configure the devices according to the Common Configuration.In addition,
      set IKE_SA Lifetime to 300 seconds and set CHILD_SA Lifetime to 30 seconds.
  * Pire-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) 
    |------------------->| IKE_AUTH response (HDR, SK {IDr, AUTH, N, SAr2, TSi, TSr})
    |                    | (Judgement #2)
    |                    |
    |<-------------------| INFORMATIONAL request (HDR, SK {}) 
    |                    | (Packet #3)
    |------------------->| INFORMATIONAL response (HDR, SK {})
    |                    | (Judgement #3)
    |                    |
    V                    V
N: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1
Packet #2 See Common Packet #3
Packet #3 See Common Packet #17
  Part A: (BASIC)
       1. TN1 starts to negotiate with NUT by sending IKE_SA_INIT request.
       2. Observe the messages transmitted on Link A.
       3. After reception of IKE_AUTH response from the NUT, TN1 transmits an IKE_AUTH
          request to the NUT.
       4. Observe the messages transmitted on Link A.
       5. After reception of IKE_AUTH response from the NUT, TN1 transmits an
          INFORMATIONAL request with no payloads.
       6. Observe the messages transmitted on Link A.


Observable Result

  Part A
    Step 2: 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 4: Judgment #2
      The NUT transmits an IKE_AUTH response including "ENCR_3DES",
      "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as accepted algorithms.
  
    Step 6: Judgment #3
      The NUT transmits an INFORMATIONAL Response followed by an Encrypted payload with
      no payloads contained in it.


Possible Problems * None.