Now, pfSense has been configured for load balancing and implicit failover. Let's proceed and verify this configuration further.
Let's take the verification one step further. Instead of disabling a WAN connection, let's try to disable each of the gateways and observe the effects:
- Click System tab on the toolbar and select Routing. Click the Gateway Groups tab:
![](https://static.packt-cdn.com/products/9781789532975/graphics/assets/0129d31f-bcec-48f8-b359-7825053f8d4a.png)
Both have the Priority set to Tier 1, which indicates that pfSense is currently working as a load balancer, which inherently also provides failover.
- Click the Gateways tab and let's disable the first link, which is WAN1-DHCP:
![](https://static.packt-cdn.com/products/9781789532975/graphics/assets/61a982a4-ce12-401d-ab7d-c1022b355e40.png)
- Click the Edit icon to its left. Scroll down to the field Force State. Select the Mark Gateway as Down checkbox:
![](https://static.packt-cdn.com/products/9781789532975/graphics/assets/ceb91c39-1939-407a-9485-831ce473bf23.png)
- Click Save. Click Apply Changes. Go back to the client machine and see if it is getting a response. You will see that...