we are setting up a secondary Internet connection in a seperate building with a seperate service provider, etc..
The main connection is through a PIX then into a 1600 series router and out to the frame relay Internet connection.
The secondary connection is via a seperate PIX firewall (non failover) and out to an ADSL Internet modem which connects to another ISP.
Both of these firewalls connect to a core consisting of a stack of 3750 switches. The firewall private IP addresses are on a seperate VLAN to the rest of the network (but the same VLAN as each other). These 3750 switches run EIGRP and are used as the default gateway by devices in the building.
We want the secondary Internet connection to pass traffic only when the primary Internet connection is offline (eg, line fault or ISP problems). It was recommended to us to put a floating static route on the 3750 stack with the IP deafault network set to 0.0.0.0
ip route 0.0.0.0 0.0.0.0 <PRIMARY ISP ROUTER>
ip route 0.0.0.0 0.0.0.0 <SECONDARY ISP ROUTER> 2
the addresses would be filled with the private IP of the primary and secondary PIX firewall.
Is this the best way to accomplish a non load balancing fault tolerant Internet connection via seperate ISP's?