Learn to configure site-to-site VPN connections on SonicWALL firewalls. This technical guide covers IKEv2 authentication, network configuration, and security best practices for connecting branch offices to corporate networks. Configuration Requirements: - Public IP addresses for both locations - Non-overlapping network subnets - Administrative firewall access - Pre-shared key authentication Tutorial Overview: 0:00 Introduction and Prerequisites 0:17 Network Planning and IP Configuration 1:37 Configuration Backup Best Practices 2:17 Enable VPN Services on Site A 2:39 VPN Policy Creation and Setup 3:03 IKE Authentication Configuration 4:03 Local and Remote Network Configuration 5:10 Security Proposals and Encryption Settings 6:03 Advanced Settings and Keep-Alive Configuration 7:25 Site B Branch Office Configuration 8:17 VPN Tunnel Testing and Validation 9:01 Summary Technical Specifications Covered: - IKEv2 Mode with Diffie-Hellman Group 5 - AES-256 Encryption Standard - SHA-256 Authentication - Perfect Forward Secrecy Implementation - Keep-Alive Configuration for Branch Offices Security Best Practices: Always export configuration backups before making changes. Configure keep-alive on branch locations only to minimize hub CPU overhead. Validate network subnet isolation to prevent routing conflicts. For more information, visit