Cisco Routers for the Desperate, 2nd Edition

Private Circuit Configuration

While your circuit is on order, you can preconfigure your router. Configuring a Cisco router for a private connection is almost exactly the same as configuring it for an ISP connection. As long as the configuration of the router on each end is consistent, there's really very little you can do to mess it up. In most situations, the hardest part of the configuration process is choosing the IP addresses for your circuit.

Private Circuit IP Addresses

You'll need IP addresses for both ends of your T1 circuit and for at least one Ethernet interface on each router. To number the Ethernet interface, just pick an IP address on the local LAN. Every device in the remote office will use the IP address of the remote office router's ...