Site-to-site VPN

You can configure policy-based (host-to-host and site-to-site) IPsec VPNs, route-based IPsec VPNs, and SSL VPNs. You can also create RED tunnels between the main office and the branch offices.

IPsec VPN

Policy-based VPN: Encrypts traffic passing through the listening interface based on the firewall rule and the local and remote subnets specified in the matching IPsec connection. Use these to connect small networks.

• About policy-based VPNs
• Add a site-to-site IPsec connection
• Create a site-to-site IPsec VPN (policy-based VPN): An example
• Configure OSPF over IPsec VPN: An example

Route-based VPN: Encrypts traffic passing through the virtual tunnel interfaces established based on the configuration. Static, dynamic, and SD-WAN policy routes determine the traffic sent through these interfaces. Use these to connect large, dynamic networks.

• About route-based VPNs
• Create a route-based VPN: An example
• Configure a route-based VPN failover with two ISP connections: An example
• Configure a site-to-site IPsec VPN with multiple SAs to a route-based Azure VPN gateway: An example
• Configure an IPsec VPN with Azure gateway: An example
• Configure BGP over route-based VPN: An example
• Configure OSPF over route-based VPN: An example

Prerequisites for policy-based and route-based IPsec connections: Use the default IPsec profiles or create custom profiles for the phase 1 and phase 2 security settings.

• About IPsec profiles
• Add an IPsec profile

Post-requisites for policy-based and route-based IPsec connections: Optionally, add a VPN failover group to configure redundant tunnels.

• Add a failover group

Route system-generated traffic through IPsec tunnels:

• Send DHCP traffic over policy-based IPsec VPN to servers
• Route system-generated authentication queries through an IPsec tunnel

SSL VPN

Site-to-site SSL VPN: Establishes SSL/TLS connections between two Sophos Firewall devices in a client-server configuration.

• About site-to-site SSL VPN connections
• SSL VPN global settings
• Create a site-to-site SSL VPN: An example

RED tunnels

Remote Ethernet Device (RED): Provides a secure tunnel between a remote site and Sophos Firewall. You can configure and install RED appliances. Alternatively, you can create a site-to-site RED tunnel between two Sophos Firewall devices in a client-server configuration.

• About RED hardware models and Firewall REDs
• Add a RED tunnel
• Create a site-to-site RED tunnel: An example
• Deploy a RED manually: An example

More resources

• Routing