pfSense is an open source firewall/router computer software distribution based on FreeBSD. It is installed on a computer to make a dedicated firewall/router for a network and is noted for its reliability and offering features often only found in expensive commercial firewalls. It can be configured and upgraded through a web-based interface, and requires no knowledge of the underlying FreeBSD system to manage. pfSense is commonly deployed as a perimeter firewall, router, wireless access point, DHCP server, DNS server, and as a VPN endpoint.
How to setup multi WAN with pfsense?
I have pfsense 2.0.3 release installed on “OPNsense 5 port Ghz rack edition – 19″ pfSense appliance” that I highly recommend with a very good support team.
Connect to your pfsense web interface and go to the System menu and select Routing. Select the Gateways tab and click the + sign. Select the WAN interface, enter the Gateway Name, IP address and description. Save settings and Apply.
Adding two groups, one for load-balancing and one for fail-over mode
After saving the settings and apply, go to the Firewall menu and select Rules. Select the LAN tab and you can add a Rule by clicking the + sign.
A new page opens, first part is “Edit Firewall rule” check the following screenshot
The important part is the second one “Advanced features”, in the Gateway select the group of your choice to be applied.
Save settings and apply.