Welcome to the Firewall FAQ section of Zyxel's technical portal. Firewalls are critical for protecting your network from unauthorized access and cyber threats. Whether you are configuring security policies, troubleshooting connectivity issues, or optimizing performance, this guide provides answers to the most common questions about Zyxel firewalls. Our goal is to help you maintain a secure and efficient network environment.
| Frequently Asked Questions |
Critical Updates
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- USG Series - Creating A Diagnostic File
- USG FLEX H Series [Firewall] - Overview of CLI Commands for H Series
- Convert your USG/Zywall configuration to ATP using the Configuration Converter
License Selection
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VPN Overview
You´ve no idea which VPN matches your needs.
VPN Client - Automatic Config from USG!
You don´t need to spend your time with manual config, USG will help you easy, quick, safe!
macOS User - We have a VPN!
Download our latest version for SSL VPN clients and keep your SSL VPN up and running!
Security services
With GEO IP, you can block different countries. Is that nice?
High Availability
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