Title

  Test IKEv2.EN.R.1.1.11.4: Response bit is set
  Part A (BASIC)


Purpose

  To verify an IKEv2 device ignores an IKE request message whose Response bit is set.


References

  [RFC 4306] - Sections 2.21


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)
    |                    | (Judgement #1)
    |---------X          | IKE_SA_INIT Response (HDR, SAr1, KEr, Nr)
    |                    | (Packet #1)
    |                    |
    V                    V
Packet #1 See Common Packet #1
Response bit is set to one.
  Part A (BASIC)
     1. TN starts to negotiate with NUT by sending IKE_SA_INIT request whose Response bit is
         set to one.
     2. Observe the messages transmitted on Link A.


Observable Results

  Part A
       Step 2: Judgment #1
       The NUT never responds with an IKE_SA_INIT response to an IKE_SA_INIT request from
       the TN1.


Possible Problems

  * None