Contents
ZyWALL USG 20-2000 User’s Guide
4
5.1 How to Configure Bandwidth Management .......................................................................................95
5.2 How to Configure a Trunk for WAN Load Balancing .......................................................................102
5.3 How to Use Multiple Static Public WAN IP Addresses for LAN-to-WAN Traffic ..............................104
5.4 How to Use Device HA to Backup Your ZyWALL ............................................................................105
5.5 How to Configure DNS Inbound Load Balancing ............................................................................ 110
5.6 How to Allow Public Access to a Web Server ................................................................................. 112
5.7 How to Manage Voice Traffic .......................................................................................................... 114
5.8 How to Limit Web Surfing and MSN to Specific People ..................................................................120
Maintenance ...................................................................................................................................... 125
6.1 How to Allow Management Service from WAN ...............................................................................125
6.2 How to Use a RADIUS Server to Authenticate User Accounts based on Groups ..........................128
6.3 How to Use SSH for Secure Telnet Access ....................................................................................129
6.4 How to Manage ZyWALL Configuration Files .................................................................................130
6.5 How to Manage ZyWALL Firmware ................................................................................................131
6.6 How to Download and Upload a Shell Script ..................................................................................132
6.7 How to Change a Power Module ....................................................................................................133
6.8 How to Save System Logs to a USB Storage Device .....................................................................135
6.9 How to Get the ZyWALL’s Diagnostic File .......................................................................................138
6.10 How to Capture Packets on the ZyWALL ......................................................................................139
6.11 How to Use Packet Flow Explore for Troubleshooting ..................................................................143
Appendix A Legal Information.......................................................................................................... 145