Using the following Phase 1 settings:
I keep getting this error:
Received unencrypted notify payload (no proposal chosen) from IP x.x.x.x to y.y.y.y, ignored...orIKE phase-1 negotiation is failed. Unable to process peer’s SA payload.
Check the IKE Crypto profile configuration to verify that the proposals on both sides have a common encryption, authentication, and DH Group proposal.
That is a pretty good guide on how to configure this correctly. I would run through that and actually verify that you have everythign configured corrrectly.
Try using 3des instead of aes-256-cbc and make sure its the same on ASA side. I got this issue recently and when changed to 3des phase1 was up.
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