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ZyXEL Communications ZYWALL USG 20W User Manual

ZyXEL Communications ZYWALL USG 20W
88 pages
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ZyWALL USG 20/20W/50
ZLD 2.21 Support Notes
Revision 1.00
August, 2010
Written by CSO

Table of Contents

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ZyXEL Communications ZYWALL USG 20W Specifications

General IconGeneral
Maximum VPN Tunnels50
WAN Ports2
LAN Ports4
USB Ports1
DMZ Ports1
VLANs256
WirelessNo
Humidity10% to 90% (non-condensing)
InterfacesEthernet, USB
Power Supply12V DC
Operating Temperature0°C to 40°C
Storage Temperature-20°C to 70°C

Summary

Scenario 1 - Connecting your USG to the Internet

1.1 Application Scenario

Describes the purpose of a WAN connection and the USG's multiple WAN feature for Internet access.

1.2 Configuration Guide

Provides step-by-step instructions for configuring PPPoE and 3G interfaces for failover.

Scenario 2 - WAN Load Balancing and Customized Usage of WAN Connection for Specific Traffic (USG 50 only)

2.1 WAN Load Balancing

Explains how to balance traffic across multiple WAN connections for improved service quality and utilization.

2.2 Customized Usage of WAN Connection for Specific Traffic Type

Details how to direct specific traffic types (e.g., VoIP) over designated WAN connections using Policy Route.

2.3 Application Scenario

Illustrates a scenario where VoIP traffic uses WAN1 and HTTP traffic uses WAN2, with load balancing for other traffic.

2.4 Configuration Guide

Guides users through configuring policy routes for VoIP and HTTP traffic, and setting up WAN trunks for load balancing.

Scenario 3 - How to configure NAT if you have Internet-facing public servers

3.1 Application Scenario

Explains how to map traffic from the Internet to internal servers for service availability and protection.

3.2 Configuration Guide

Provides steps for configuring NAT (Port Forwarding) to allow external access to internal servers like FTP.

Scenario 4 - Secure site-to-site connections using IPSec VPN

4.1 Application Scenario

Introduces secure site-to-site communication using IPSec VPN tunnels over the Internet for connecting remote locations.

4.2 Configuration Guide

Outlines the IPSec VPN conditions and goals for building a secure tunnel between two ZyWALL devices.

Scenario 5 - Secure client-to-site connections using IPSec VPN

5.1 Application Scenario

Describes secure remote access for mobile users to corporate resources via IPSec VPN.

5.2 Configuration Guide

Details IPSec VPN conditions and goals for establishing tunnels for mobile user access.

Scenario 6 - Deploying SSL VPN for Tele-workers to Access Company Resources (USG 50 only)

6.1 Application Scenario

Explains SSL VPN for easy remote access to company resources, requiring only a browser.

6.2 Configuration Guide

Outlines network conditions and goals for setting up SSL VPN for tele-workers to access VNC servers or file shares.

Scenario 7 - Reserving Highest Bandwidth Management Priority for VoIP Traffic

7.1 Application Scenario

Discusses managing bandwidth to prioritize sensitive VoIP traffic over other network traffic.

7.2 Configuration Guide

Details enabling SIP ALG and configuring Bandwidth Management (BWM) for VoIP traffic priority.

Scenario 8 - Reserving Highest Bandwidth Management Priority for a Superior User and Control Session per Host

8.1 Application Scenario

Focuses on prioritizing a superior user's traffic and limiting sessions per host to ensure smooth operation.

8.2 Configuration Guide

Guides on setting up BWM for priority-based traffic management and limiting concurrent sessions per host.

Scenario 9 - Using ZyWALL to Control Popular P2P Applications (USG 50 only)

9.1 Application Scenario

Explains how to use Application Patrol to manage P2P traffic, blocking it during office hours and limiting it otherwise.

9.2 Configuration Guide

Details configuring schedules and App Patrol to block or limit P2P applications based on office hours.

Scenario 10 - Deploying Content Filtering to Manage Employee Browsing Behavior

10.1 Introduction to ZSB (ZyXEL Safe Browsing)

Introduces ZyXEL Safe Browsing (ZSB) for enhancing web browsing safety and protecting against malicious sites.

10.2 Application Scenario

Describes restricting employee web access during office hours while allowing manager unrestricted access.

10.3 Configuration Guide

Guides on enabling Content Filter, setting up policies for different user groups, and defining schedules.

Scenario 11 - Quick Setup for Allowing WLAN Users to Access LAN Services (USG 20W only)

11.1 Application Scenario

Explains how to allow WLAN users to access LAN services by configuring firewall policies and security groups.

11.2 Configuration Guide

Provides steps to configure WLAN interface settings and bridge them to the LAN zone for access.

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