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ZyWALL 10/50 Internet Security Gateway
Getting to Know Your ZyWALL 1-1
Chapter 1
Getting to Know Your ZyWALL
This chapter introduces the main features and applications of the ZyWALL.
1.1 The ZyWALL 10/50 Internet Security Gateway
The ZyWALL 10/50 is a dual Ethernet Internet security gateway integrated with a robust firewall and
network management features designed for home offices and small businesses to access the Internet via
cable/ADSL modem or Internet router.
By integrating NAT, firewall and VPN capability, ZyXEL’s ZyWALL 10/50 provides not only ease of
installation and Internet access, but also a complete security solution that protects your Intranet and
efficiently manages data traffic on your network.
The ZyWALL web configurator is a breeze to operate and totally independent of the operating system
platform you use.
1.2 Features
The following are the main features of the ZyWALL 10/50.
Auto-negotiating 10/100Mbps Ethernet LAN
This auto-negotiation feature allows the ZyWALL to detect the speed of incoming transmissions and adjust
appropriately without manual intervention. It allows data transfer of either 10 Mbps or 100 Mbps in either
half-duplex or full-duplex mode depending on your Ethernet network.
IPSec VPN Capability
Establish a Virtual Private Network (VPN) to connect with business partners and branch offices using data
encryption and the Internet to provide secure communications without the expense of leased site-to-site lines.
The VPN is based on the IPSec standard and is fully interoperable with other IPSec-based VPN products.
The ZyWALL 10 supports up to 10 runtime SAs (Security Associations) and the ZyWALL 50 supports up to
50 runtime SAs.
Firewall
The ZyWALL is a stateful inspection firewall with DoS (Denial of Service) protection. By default, when the
firewall is activated, all incoming traffic from the WAN to the LAN is blocked unless it is initiated from the
LAN. The ZyWALL firewall supports TCP/UDP inspection, DoS detection and prevention, real time alerts,
reports and logs.