ZyXEL Communications 202H User Manual

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Prestige 202H User’s Guide 
1-4 
Getting to Know Your Prestige 
PAP and CHAP Security 
The router supports PAP (Password Authentication Protocol) and CHAP (Challenge Handshake 
Authentication Protocol). CHAP is more secure than PAP; however, PAP is readily available on more 
platforms. 
DHCP (Dynamic Host Configuration Protocol) 
DHCP (Dynamic Host Configuration Protocol) allows the individual client computers to obtain the TCP/IP 
configuration at start-up from a centralized DHCP server. The Prestige has built-in DHCP server capability, 
enabled by default, which means it can assign IP addresses, an IP default gateway and DNS servers to all 
systems that support the DHCP client. The Prestige can also act as a surrogate DHCP server (DHCP Relay
where it relays IP address assignment from another DHCP server to the clients. 
Call Control 
Your router provides budget management for outgoing calls and maintains a blacklist for unreachable phone 
numbers in order to save you the expense of unnecessary charges. 
Data Compression 
Your router incorporates Stac data compression to speed up data transfer. Stac is the de facto standard of data 
compression over PPP links. 
Networking Compatibility 
Your router is compatible with remote access products from other manufacturers such as Ascend, Cisco, and 
3Com. Furthermore, it supports Microsoft Windows 95 and Windows NT remote access capability. 
Upgrade Firmware via LAN 
In addition to the direct console port connection, the router supports the up/downloading of firmware and 
configuration file using TFTP (Trivial File Transfer Protocol) over the LAN. Even though TFTP should work 
over the WAN as well, it is not recommended because of potential data corruption problems. 
1.3  Internet Access With the Prestige  
These sections provide example applications for your Prestige. 
1.3.1 Internet Access 
 
The Prestige is the ideal high-speed Internet access solution. Your router supports the TCP/IP protocol, 
which the Internet uses exclusively. It is also compatible with access servers manufactured by major vendors 
such as Cisco and Ascend. A typical Internet Access application is shown next.