I am in the process of configuring our network with dual internet connections through separate firewalls using different ISP carriers. We will be using BGP for inbound traffic, but how do I configure our outbound traffic for internet failover? I am running OSPF internally on all the core switches. Our current internet connection is in our Data Center 1 (as noted in the drawing) and the 2nd, proposed, connection will be at our Headquarters. I want the traffic to go through Data Center 1 and if there is an issue, failover to the Headquarters ISP. I currently have my gateway of last resort routes mapped to the Data Center 1 connection. I assume I need to remove those routes and let OSPF handle default routes? Any help will be greatly appreciated. TIA.