- Enterasys Security Router User's Guide

XSR User’s Guide 10-1

Configuring Dialer Services

This chapter details information about the XSR’s suite of dialer functionality:

•Dial

• Ethernet Failover

• Backup Dialer

• Dial on Demand (DoD)

• Bandwidth on Demand (BoD)

• Multilink PPP (MLPPP)

• Dialer Interface Spoofing

• Dialer Watch

Overview of Dial Services

Dial Services provide network connections across the Public Switched Telephone Network

(PSTN). Networks are typically interconnected using dedicated lines for Wide-Area Network

(WAN) connections. Dial Services can use modems, Integrated Service Data Network (ISDN)

terminal adapters (TAs), or integrated ISDN capabilities to establish low-volume, periodic

network connections over public circuit-switched networks.

Dial Services are a cost-saving alternative to a leased line connection between two peers and they

can be implemented for different types of media for both inbound and outbound connections.

Dial Services Features

The XSR supports the following dialer features:

• Asynchronous serial service through an external modem

•Synchronous serial

• Addressing using numbered or unnumbered interfaces

• Outbound connections

•Time of day feature

• PPP encapsulation

• CHAP, MS-CHAP and PAP authentication and security

• Callback