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Site-to-Site VPN from SonicWALL to SonicWall

CCraneCompany
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Last Modified: 2015-04-20
I have been trying to setup a site to site VPN between two of our buildings for the last 3 days.  On one end (new building) I have a brand new SonicWALL NSA 3600 with just the basic settings (static IP, subnet, etc).  On the other end (headquarters) I have an older SonicWALL NSA 3500.  This NSA 3500 has 4 other site to site VPN's already working (one of which is to another SonicWALL TZ210).  I am running into a problem with the new site to site vpn where I cannot get the connection established.

I am using IKEv2 on both ends, the same DH group, the same encryption (AES-256) and still nothing.  Here is the log I see on my NSA 3500

IKEv2 Received notify error payload
IKEv2 Initiator: Received IKE_AUTH response
IKEv2 Initiator: Send IKE_AUTH Request
IKEv2 No NAT device detected between negotiating peers
IKEv2 Accept IKE SA Proposal
IKEv2 Initiator: Received IKE_SA_INT response
IKEv2 Initiator: Send IKE_SA_INIT Request

Double and triple checked the pre-shared keys and IP addresses.  Any suggestions?
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