Connecting to the Modem (DCE)

Asynchronous dial-up involves the use of analog modems to convert data into streams of information that can be carried over phone lines. These modems can be attached externally, as with the Cisco 2511 access server, or they can be integrated into the product, as with Cisco AS5200 series access servers. The line that connects the modem can be a physical asynchronous line (external modem) or a virtual line inside an integrated modem module (integrated modem).

In the following sections, you will learn to

• Differentiate between a forward and reverse connection to a modem

• Configure a reverse-Telnet session

• Configure line types