Internetworking and Management Overview

Campus-REX IP Addresses

Each Campus-REX unit has two IP addresses, the LAN address and the Line address. In the following figure, the non-shaded side of the Campus-REX indicates the LAN address, which is for the Ethernet (10BASE-T) connection. The shaded side of the Campus-REX is the IP Line address, which is for the HDSL connection. Note that the IP Line address is different from the LAN addresses. When connecting two Campus-REX units point-to-point through HDSL, the IP Line addresses are completely isolated and hidden from the rest of the network. You can assign any subnet to the Line IP addresses.

When routing, data travels one hop at a time. The figure below shows destination and next hop IP addresses. The destination address indicates the network and subnetwork of the next hop. The next hop is the next-stop IP address node. The default gateway is the upstream routing device. Use this example to help you determine/record static IP routing addresses.

Campus-REX RS Interface Card User Manual

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