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: 1.1.1.1 | IP for pfSense
IPsec Secondary Gateway Name or Address: 0.0.0.0
Shared Secret: Shared secret for this connection
Local IKE ID: 2.2.2.2 | 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: 192.168.21.0 | Create an address object for the network or you can use the built in one ‘LAN Subnets’
Destination Networks
Choose destination network from list: 192.168.65.0 | 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: 1.1.1.1 (IP Address of pfSense WAN)
Peer identifier: 2.2.2.2 (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: 192.168.65.0/24
Remote Network: 192.168.21.0/24
Protocol: ESP
Encryption algorithms: 3DES
Hash algorithms: SHA1
PFS key group: 2
Lifetime: 84600
Please see my article how to configure sonicwall with pfsense.