Test IKEv2.EN.I.1.2.7.1: Non zero RESERVED fields in CREATE_CHILD_SA response Part A: (BASIC)
To verify an IKEv2 device ignores the content of RESERVED filed in IKE messages.
* [RFC 4306] - Sections 2.5
* 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) | | (Judgement #1) |<-------------------| IKE_SA_INIT Response (HDR, SAr1, KEr, Nr) | | (Packet #1) | | |------------------->| IKE_AUTH request (HDR, SK {IDi, AUTH, N+, SAi2, TSi, TSr}) | | (Judgement #2) |<-------------------| IKE_AUTH Response (HDR, SK {IDr, AUTH, N+, SAr2, TSi, TSr}) | | (Packet #2) | | --- --- | | --- |<-------------------| IPSec {Echo Request} | | | (Packet #3) | |------------------->| IPSec {Echo Reply} | repeat Echo exchange until lifetime of SA is expired | | (Judgement #3) | | | --- --- --- | | |------------------->| CREATE_CHILD_SA request (HDR, SK {N, N+, SA, Ni, TSi, TSr}) | | (Judgement #4) |<-------------------| CREATE_CHILD_SA response (HDR, SK {N+, SA, Nr, TSi, TSr}) | | (Packet #4) | | |------------------->| INFORMATIONAL request (HDR, SK {D}) | | (Judgement #5) | | V V
N: REKEY_SA N+: USE_TRANSPORT_MODE
Packet #1 See Common Packet #2 Packet #2 See Common Packet #4 Packet #3 See Common Packet #19 Packet #4 See Common Packet #14
All RESERVED fields are set to one.
Part A: (BASIC) 1. NUT starts to negotiate with TN1 by sending IKE_SA_INIT request. 2. Observe the messages transmitted on Link A. 3. TN1 responds with an IKE_SA_INIT response to the NUT. 4. Observe the messages transmitted on Link A. 5. After reception of IKE_AUTH request from the NUT, TN1 responds with an IKE_AUTH response to the NUT 6. TN1 transmits an Echo Request with IPsec ESP using the first negotiated algorithms to NUT. 7. Observe the messages transmitted on Link A. 8. Repeat Steps 6 and 7 until lifetime of SA is expired. 9. Observe the messages transmitted on Link A. 10. After reception of CREATE_CHILD_SA request for rekeying from the NUT, TN1 responds with a CREATE_CHILD_SA response to the NUT. All RESERVED fields in the message are set to one. 11. Observe the messages transmitted on Link A.
Part A Step 2: Judgment #1 The NUT transmits an IKE_SA_INIT request including "ENCR_3DES", "PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as proposed algorithms.
Step 4: Judgment #2 The NUT transmits an IKE_AUTH request including "ENCR_3DES", "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as proposed algorithms.
Step 7: Judgment #3 The NUT transmits an Echo Reply with IPsec ESP using corresponding algorithms.
Step 9: Judgment #4 The NUT transmits a CREATE_CHILD_SA request including "ENCR_3DES", "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as proposed algorithms. And the CREATE_CHILD_SA request includes a Notify payload of type REKEY_SA containing rekeyed CHILD_SA's SPI value in the SPI field.
Step 11: Judgment #5 The NUT transmits an INFORMATIONAL request with a Delete payload. The Delete payload includes 3 (ESP) as Protocol ID, 4 as SPI Size and the inblund SPI value to be deleted as SPI.
* Each NUT has the different lifetime of SA.