Does anyone know of an entry level router/firewall that supports publicIP<->publicIP NAT'ting. (not sure if there is a name for this). As opposed to the usual public<->private setup that most corporate LANs use.
Datacenter1 DC1, Datacenter2 DC2
Say an application server is load balanced (DNS round robin) between two DC's, now there is an application failure on server A, you would want to re-route packets from DC1 to DC2 for failover. You want to use source port routing and cannot rely on BGP, since its application not network failure.
You could use a VPN and all use a private network address space but adds a whole new level of complexity to your setup.
Thinking of a Cisco Pix 500 series, would that be up ot the task? From the docs the it does seem to support it.