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Administration Guide

Network topology

Network topology

The following diagram depicts the network topology that the FortiExtender as a FortiSASE LAN extension configuration uses:

By default, using DHCP, FortiSASE dynamically assigns IP addresses to devices connected to the local network of the FortiExtender, that is, the LAN switch interface.

You should connect the FortiExtender’s discovery interface to the internet. FortiExtender uses this interface for communication with FortiSASE. You can configure this interface to use DHCP or static IP addressing from the GUI or CLI.

For the FortiExtender 200F, specifically, note the following:

  • Connecting the local network devices to port4 or port5 within the LAN switch interface is recommended.
  • port1 or port2 are designated with the WAN role and you can use one or both ports as the discovery interface.

See the following picture for reference:

Network topology

The following diagram depicts the network topology that the FortiExtender as a FortiSASE LAN extension configuration uses:

By default, using DHCP, FortiSASE dynamically assigns IP addresses to devices connected to the local network of the FortiExtender, that is, the LAN switch interface.

You should connect the FortiExtender’s discovery interface to the internet. FortiExtender uses this interface for communication with FortiSASE. You can configure this interface to use DHCP or static IP addressing from the GUI or CLI.

For the FortiExtender 200F, specifically, note the following:

  • Connecting the local network devices to port4 or port5 within the LAN switch interface is recommended.
  • port1 or port2 are designated with the WAN role and you can use one or both ports as the discovery interface.

See the following picture for reference: