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I have a Sonicwall NSA 3500 and a TZ190 doing point to point VPN, On the 3500 I get tons of errors &quot;Error - VPN IKE - &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Payload processing failed, but no errors on the TZ logs. Everything seems to be working 100% fine. 
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I have a Sonicwall NSA 3500 and a TZ190 doing point to point VPN, On the 3500 I get tons of errors "Error - VPN IKE - 	Payload processing failed, but no errors on the TZ logs. Everything seems to be working 100% fine. 

Error - VPN IKE - Payload processing failed

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.

Hardware Firewalls

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host). IPsec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite.