I have a DLS connection to the Internet and a T1 connection to the other office, which in turn is also connected to the Internet. Both connections use IP masquerading with two completely different addresses.
I want to put a firewall/router in the middle that would provide: - load balancing for these two connections. Because of NAT, the choice of which way to route has to be done on a per-connection basis. - fault tolerance for the Internet connection: if oen link goes down all new connections shold go through the other. The existing connections will have to timeout. - fault tolerance for the connection to the other office: it T1 goes down, a VPN connection should be established through DSL. Any ideas, siggestions, experinces or pointers ? What would be the most appropriate OS for it ? Sergey.