ZyXEL Communications 91-009-073003B ユーザーズマニュアル

ZyWALL USG 50 User’s Guide

This chapter gives an overview of the ZyWALL. It explains the front panel ports, 
LEDs, introduces the management methods, and lists different ways to start or 
stop the ZyWALL.

The ZyWALL is a comprehensive security device. Its flexible configuration helps 
network administrators set up the network and enforce security policies efficiently. 
In addition, the ZyWALL provides excellent throughput, making it an ideal solution 
for reliable, secure service.

The ZyWALL’s security features include VPN, firewall, anti-virus, content filtering, 
IDP (Intrusion Detection and Prevention), ADP (Anomaly Detection and 
Protection), and certificates. It also provides bandwidth management, Instant 
Messaging (IM) and Peer to Peer (P2P) control, NAT, port forwarding, policy 
routing, DHCP server and many other powerful features. Flexible configuration 
helps you set up the network and enforce security policies efficiently. See 

 for a more detailed overview of the ZyWALL’s features.

The ZyWALL provides excellent throughput with the reliability of dual WAN Gigabit 
Ethernet ports and load balancing.

 

You can also use a 3G cellular USB (not 

included) for a third WAN connection.

The ZyWALL lets you set up multiple networks for your company. The De-
Militarized Zone (DMZ) increases LAN security by providing separate ports for 
connecting publicly accessible servers. The ZyWALL also provides two separate 
LAN networks. You can set ports to be part of the LAN1, or DMZ. Alternatively, you 
can deploy the ZyWALL as a transparent firewall in an existing network with 
minimal configuration.