You are looking at the event log of the responding device and it says Rejected an initial Phase 1 packet from an unrecognized peer gateway Which is NOT likely reason for the failure?
A.
Local ID misconfigured
B.
Gateway address misconfigured
C.
Outing Interface misconfigured
D.
Security proposals misconfigured
Explanation:
According to junipers knowledgebase there are several possible causes for this:
* This can be an indication that the IKE ID of the NetScreen-Remote client does not match the IKE ID of the Dial Up User configuration on the NetScreen gateway. Resolution: Verify the IKE ID of both NetScreen-Remote client and Dial Up VPN User, and make sure the two match
* Peer gateway address misconfigured when configuring the IKE Gateway. Resolution: Correct the gateway address on the remote side
* Peer ID misconfigured. The if remote end has a dynamic IP address, then the peer ID is misconfigured. Basically, the peer id that was received in the phase 1 negotiation does not match the peer id in the ike configuration.
Resolution: Modify the peer id on the local device and the local id on the remote device so they are the same
* Wrong outgoing interface defined in the IKE Phase 1 gateway. Resolution: Modify the outgoing interface in phase 1 so it matches the interface that the IKE negotiation will be going out of.