Test IKEv2.EN.R.1.2.2.1: Receipt of retransmitted CREATE_CHILD_SA request Part A: (BASIC)
To verify an IKEv2 device retransmits CREATE_CHILD_SA request using properly Header and Payloads format
* [RFC 4306] - Sections 2.1, 2.2 and 2.4
* 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.
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) | | |<-------------------| CREATE_CHILD_SA request (HDR, SK {N, N+, SA, Ni, TSi, TSr}) | | (Packet #3) |------------------->| CREATE_CHILD_SA response (HDR, SK {N, N+, SA, Nr, TSi, TSr}) | | (Judgement #3) | | | * wait until retrans timer expires |---------X | CREATE_CHILD_SA response (HDR, SK {N, N+, SA, Ni, TSi, TSr}) | | (Judgement #4) | | |<-------------------| CREATE_CHILD_SA request (HDR, SK {N, N+, SA, Ni, TSi, TSr}) | | (Packet #4) |------------------->| CREATE_CHILD_SA response (HDR, SK {N, N+, SA, Nr, TSi, TSr}) | | (Judgement #5) | | V V
N: REKEY_SA N+: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1 Packet #2 See Common Packet #3 Packet #3 See Common Packet #13 Packet #4 See Common Packet #13
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 trasmits an IKE_AUTH request to the NUT. 4. Observe the messages transmitted on Link A. 5. TN1 transmits a CREATE_CHILD_SA request to rekey the established CHILD_SAs to the NUT. 6. Observe the messages transmitted on Link A. 7. Observe the messages transmitted on Link A. 8. TN1 retransmits the same message as a CREATE_CHILD_SA request transmitted in Step 5 to the NUT. 9. 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 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 a CREATE_CHILD_SA response including "ENCR_3DES", "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as proposed algorithms.
Step 7: Judgment #4 The NUT never retransmits a CREATE_CHILD_SA response which has the same Message ID value as the previous CREATE_CHILD_SA request's Message ID value in IKE Header.
Step 9: Judgment #5 The NUT retransmits a CREATE_CHILD_SA response which has the same Message ID value as the previous CREATE_CHILD_SA request's Message ID value in IKE Header.
* None.