Verifying load balancing across WAN connections
Now, let's verify this setup and confirm that pfSense is able to load balance the traffic across multiple WAN connections. Let's head back to the pfSense WebGUI dashboard:
- Click on the
Status
tab and then selectGateways
. Click theGateway Groups
tab:

You can see that the components of this Gateway Group are online. Since this is a load balance group, as long as a single gateway is online, this Gateway Group will be able to serve traffic to the end users. Let's switch to the client machine.
- In the Command Prompt window, let's execute the
ping google.com -t
command:

And as you can see, it is still able to ping
the remote machine, and it is getting a valid response back. So basically, this external traffic is being routed via the pfSense server in a load balanced fashion.
- Press Ctrl + C to stop the
ping
command. Let's go back to the WebGUI. - Now, let's try to simulate a situation where one of the WAN connections experiences an outage. To do that,...