Title

  Test IKEv2.EN.R.1.2.6.4: Close the replaced IKE_SA
  Part A: (BASIC)


Purpose

  To verify an IKEv2 device properly handles CREATE_CHILD_SA to rekey IKE_SA.


References

  * [RFC 4306] - Sections 2.8
  * [RFC 4718] - Sections 5.8 and 5.11


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)
    |------------------->| IKE_AUTH response (HDR, SK {IDr, AUTH, N, SAr2, TSi, TSr})
    |                    | (Judgement #2)
    |                    |
    |<-------------------| IPsec {Echo Request}
    |                    | (Packet #3)
    |------------------->| IPsec {Echo Reply}
    |                    | (Judgement #3)
    |                    |
    |<-------------------| CREATE_CHILD_SA request (HDR, SK {SA, Ni})
    |                    | (Packet #4)
    |------------------->| CREATE_CHILD_SA response (HDR, SK {SA, Nr})
    |                    | (Judgement #4)
    |                    |
    |<-------------------| INFORMATIONAL request (HDR, SK {D})
    |                    | (Packet #5)
    |------------------->| INFORMATIONAL response (HDR, SK {})
    |                    | (Judgement #5)
    |                    |
    |<-------------------| IPsec {Echo Request}
    |                    | (Packet #6)
    |------------------->| IPsec {Echo Reply}
    |                    | (Judgement #6)
    |                    |
    V                    V

N: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1
Packet #2 See Common Packet #3
Packet #3 See Common Packet #19
Packet #4 See Common Packet #11
Packet #5 See below
Packet #6 See Common Packet #19

Packet #5: INFORMATIONAL request
IPv6 Header Same as the Common Packet #17
UDP Header Same as the Common Packet #17
IKEv2 Header Same as the Common Packet #17
E Payload Other fields are same as the Common Packet #17
Next Payload 42 (Delete)
Delete Payload Next Payload 0 (last)
Critical 0
Reserved 0
Payload Length 16
Procotol ID 1 (IKE_SA)
SPI Size 0
# of SPIs 0
Security Parameter Index(es) (SPI) empty
  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_SA_INIT response from the NUT, TN1 transmits an IKE_AUTH
         request to the NUT.
     4. Observe the messages transmitted on Link A.
     5. TN1 transmits an Echo Request with IPsec ESP using corresponding algorithms to NUT.
     6. Observe the messages transmitted on Link A.
     7. TN1 transmits a CREATE_CHILD_SA request to rekey IKE_SA to the NUT.
     8. Observe the messages transmitted on Link A.
     9. TN1 transmits an INFORMATIONAL request with a Delete payload which has 1 (IKE_SA)
         in the Protocol ID field, zero in the SPI Size field and zero in the # of SPIs field.
     10. Observe the messages transmitted on Link A.
     11. TN1 transmits an Echo Request with IPsec ESP using corresponding algorithms inherited
         from the replaced IKE_SA.
     12. 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 Echo Reply with IPsec ESP using corresponding algorithms.
       Step 8: Judgment #4
       The NUT transmits a CREATE_CHILD_SA response including "ENCR_3DES",
       "PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as proposed
       algorithms. And the proposal in the SA payload Response includes 1 (IKE) in the Protocol ID
       field, 8 in the SPI size field and rekeyed IKE_SA's responder's SPI value in the SPI field.
       Step 10: Judgment #5
       The NUT responds with an INFORMATIONAL response with no payloads.
       Step 12: Judgment #3
       The NUT transmits an Echo Reply with IPsec ESP using corresponding algorithms inherited
       from the replaced IKE_SA.


Possible Problems

  * none.