I'm starting to research how to have two Internet connections, each one to a different ISP, and each one miles from the other.
Right now I have two internet connections to two different ISPs, and both are at our main data center. ISP-1 is connected to a 7206-DS3 interface and ISP-2 is connected to a second 7206 with a DS3 interface. We have an ASN and BGP peering going on and everthing is working fine. On the inside we have a firewall with a DMZ.
Now I want to take one of the 7206 routers to ISP-2 and move it several miles away to another location. The challenge is I want to have a redundant firewall and DMZ at the new site as well.
Is there a Cisco white paper that addresses this type of dual ISP, geographically separate, dual/redundant DMZ configuration?
I'm sure that large companies have already done this many times over.