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XSR User’s Guide 10-1
10
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
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