Test IKEv2.EN.R.1.1.4.2: Receipt of a higher major version number Part A: (BASIC)
To verify an IKEv2 device drops a request with a higher major version number and send a notification message.
* [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. * 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) | | |<-------------------| INFORMATIONAL request (HDR, SK {}) | | (Packet #3) |---------X | No Response | | or |------------------->| INFORMATIONAL response (HDR, SK {(N(INVALID_MAJOR_VERSION)}) | | (Judgement #3) | | V V
N: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1 Packet #2 See Common Packet #3 Packet #3 See below
Packet #3: INFORMATIONAL response packet
IPv6 Header Same as the common packet #17 UDP Header Same as the common packet #17 IKEv2 Header Other fields are same as the common packet #17 Major Version 3 Minor Version 0 E Payload Same as the 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_SA_INIT response from the NUT, TN 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 a higher major version number to the NUT. 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 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 doest not transmit any packets or transmits an INFORMATIONAL response with a Notify payload of type INVALID_MAJOR_VERSION containing following values:
1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ! Next Payload !C! RESERVED ! Payload Length ! +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ! Protocol ID ! SPI Size ! Notify Message Type ! +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ! ! ~ Security Parameter Index (SPI) ~ ! ! +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ! ! ~ Notification Data ~ ! ! +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 71 Notify Payload format
* A Next Payload field is set to zero. * A Critical field is set to zero. * A RESERVED field is set to zero. * A Payload Length field is set to length of the current payload. * A SPI Size field is set to zero. * A Notify Message Type field is set to INVALID_MAJOR_VERSION (5). * A Notification Data field is set to the highest version number it supports (2).
* None.