ZyXEL Communications Prestige 642M series, Руководство пользователя

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Prestige 642M Series ADSL Bridge
1-2 Getting to Know Your ADSL Bridge
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PAP and CHAP Security
The Prestige supports PAP (Password Authentication Protocol) and CHAP (Challenge Handshake
Authentication Protocol). CHAP is more secure than PAP because the password is scrambled prior to
transmission. PAP, on the other hand, is readily available on more platforms.
z Filters
The Prestige has filtering functions that allow added network security and management.
1.3 Applications for the Prestige 642M
1.3.1 Internet Access
The Prestige is the ideal high-speed Internet access solution. Your Prestige supports the TCP/IP protocol,
which the Internet uses exclusively. It is compatible with all major ADSL DSLAM (Digital Subscriber
Line Access Multiplexer) providers. A DSLAM is a rack of ADSL line cards with data multiplexed into a
backbone network interface/connection (e.g., T1, OC3, DS3, ATM or Frame Relay). Think of it as the
equivalent of a modem rack for ADSL. A typical Internet Access application is shown below.
Figure 1-1 Internet Access Application
1.3.2 LAN to LAN Application
You can use the Prestige to connect two geographically dispersed networks over the ADSL line. A typical
LAN-to-LAN application for your Prestige is shown as follows.