The problem i am facing is establishment of a site to site VPN in between pfSense( version 2.0.1) and SonicWall Pro2040 Enhanced ( Firmware Version: SonicOS Enhanced . All of the configuration is done properly , still i got the following error in sonicwall -

"Payload processing failed "

Phase 1 and 2 passes properly but problem with "Payload processing" i found that it could be for shared key mismatch but I double check , no mismatch with shared key in both firewall . It also shows in sonicwall that tunnel is active

The log from pfSense is below -

  • You haven't posted your log – Zeeshan Dec 9 '13 at 9:59

Here is the setting for my sonicwall and pfsense:

General tab on Sonicwall:

Authentication Method: IKE using Pre shared Secret

Name:  pfSense Site-to-Site PN

IPsec Primary Gateway Name or Address: | IP for pfSense

IPsec Secondary Gateway Name or Address:

Shared Secret: Shared secret for this connection

Local IKE ID: | Select ‘IP Address’ from the drop down menu and then type WAN IP of Sonicwall

Network tab on Sonicwall:

Local Networks

Choose local network from list: | Create an address object for the network or you can use the built in one ‘LAN Subnets’

Destination Networks

Choose destination network from list: | Create an address object for the remote LAN network

Proposals Tab:

IKE (Phase 1) Proposal

By default pfSense supports ‘Main Mode’ and ‘Aggressive’.

Exchange: Aggressive

DH Group: Group 2

Encryption: 3DES

Authentication: SHA1

Life Time (seconds): 28800

Ipsec (Phase 2) Proposal

Protocol: ESP

Encryption: 3DES

Authentication: SHA1

Enable Perfect Forward Secrecy: Checked

Life Time: 86400

Advanced Tab:

Check ‘Enable Keep Alive’

Corresponding pfSense Settings:

Phase 1:

Authentication method: Mutual PSK

Negotiation Mode: Aggressive

My identifier: (IP Address of pfSense WAN)

Peer identifier: (IP Address of Sonicwall)

Pre Shared Key: Your pre share key

Policy Generation: Default

Proposal Checking: Obey

Encryption Algorithm: 3DES

Hash algorithm: SHA1

DH key group: 2

Lifetime: 28800

Advanced options

Nat Traversal: Enable

Dead Peer Detection: Check Enable DPD

Phase 2:

Mode: Tunnel

Local Network:

Remote Network:

Protocol: ESP

Encryption algorithms: 3DES

Hash algorithms: SHA1

PFS key group: 2

Lifetime: 84600

Please see my article how to configure sonicwall with pfsense.

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