Test IKEv2.EN.R.1.1.6.9: Creating an IKE_SA without a CHILD_SA Part A: (BASIC)
To verify that an IKEv2 device can handles a failure of creating a CHILD_SA during the IKE_AUTH exchange.
* [RFC 4718] - Sections 4.2
* 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. * Pre-Sequence and Cleanup Sequence IKEv2 on the NUT is disabled after each part.
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}) | | (Judgement #2) | | |<-------------------| INFORMATIONAL request (HDR, SK {}) | | (Packet #3) |------------------->| INFORMATIONAL Response (HDR, SK {}) | | V V
N: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1 Packet #2 See below Packet #3 See Common Packet #17
Packet #2: IKE_AUTH request Packet #2 is same as Common Packet #3 except SA Transform proposed in each test. Part A: SA Transform of Tranform Type ENCR is replaced by the following SA Transfrom.
SA Transform Next Payload 3 (more) Reserved 0 Transform Length 8 Transform Type 1 (ENCR) Reserved 0 Transform ID 12 (AES_CBC) SA Attribute Attribute Type 14 (Key Length) Attribute Value 128
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 with unacceptable SA proposal for the NUT. 4. Observe the messages transmitted on Link A. 5. TN1 transmits an INFORMATIONAL request with no payloads. 6. Observe the messages transmitted on Link A.
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 never 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.
* Step 4 The NUT can transmits an IKE_AUTH response with a Notify payload of type NO_PROPOSAL_CHOSEN.