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ZyWALL 2 Plus User’s Guide
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CHAPTER 1
Getting to Know Your ZyWALL
This chapter introduces the main features and applications of the ZyWALL.
1.1 ZyWALL Internet Security Appliance Overview
The ZyWALL is loaded with security features including VPN, firewall, content filtering and
certificates. The ZyWALL’s De-Militarized Zone (DMZ) increases LAN security by
providing separate ports for connecting publicly accessible servers. The ZyWALL provides
the option to change port roles from LAN to DMZ.
You can also deploy the ZyWALL as a transparent firewall in an existing network with
minimal configuration.
The ZyWALL provides bandwidth management, NAT, port forwarding, DHCP server and
many other powerful features.
You can add a IEEE 802.11b/g-compliant wireless LAN by connecting an access point (AP) to
an Ethernet port in a WLAN port role.
See Appendix A on page 589 for a complete list of features.
1.2 Applications for the ZyWALL
Here are some examples of what you can do with your ZyWALL.
1.2.1 Secure Broadband Internet Access via Cable or DSL Modem
For Internet access, connect the WAN Ethernet port to your existing Internet access gateway
(company network, or your cable or DSL modem for example). Connect computers or servers
to the LAN ports for shared Internet access.
The ZyWALL guarantees not only high speed Internet access, but secure internal network
protection and traffic management as well.