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 IDmisconfigured

B.
Gateway addressmisconfigured

C.
Outing Interfacemisconfigured

D.
Security proposalsmisconfigured

Explanation:

According to junipers knowledgebasethere are several possible causes for this:*This can be an indication that the IKE ID of theNetScreen-Remote client does not match the IKE ID of the Dial Up User configuration on theNetScreengateway.Resolution:Verify the IKE ID of bothNetScreen-Remote client and DialUpVPN User, and make sure the two match *Peer gateway addressmisconfiguredwhen configuring the IKE Gateway.Resolution:Correct the gateway address on the remote side*Peer IDmisconfigured.The ifremote end has a dynamic IP address, then the peer ID ismisconfigured. Basically, the peer id that was received in the phase 1 negotiation does not match the peer id in theikeconfiguration.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.