Configuring overlay connections

This section describes how to build topology with two hubs and two spokes. The spokes will connect to both hubs and use them in Active/Passive mode.

The following diagram illustrates this:

FortiManager uses the term VPN Community for a set of interconnected gateways. FortiGates will be interconnected over two separate underlay networks, so we will create the following separate VPN communities:

• One VPN community over the Internet (OL_INET)
• Another VPN community over MPLS (OL_MPLS)

Creating and configuring overlay connections involves the following steps:

1. Creating VPN communities
2. Adding gateways to VPN communities
3. Installing default policy packages
4. Enabling ADVPN and adding overlay IDs