Chapter 1 Introduction
USG FLEX H Series User’s Guide
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1.2.2 Applications
These are some Zyxel Device application scenarios.
Security Router
Security includes a Stateful Packet Inspection (SPI) firewall.
Figure 1 Applications: Security Router Applications: Security Router
VPN Connectivity
Set up VPN tunnels with other companies, branch offices, telecommuters, and business travelers to
provide secure access to your network. AS is an Authentication Server in the below figure.
Figure 2 Applications: VPN Connectivity
User-Aware Access Control
Set up security policies to restrict access to sensitive information and shared resources based on the user
who is trying to access it. In the following figure user A can access both the Internet and an internal file
server. User B has a lower level of access and can only access the Internet. User C is not even logged in,
so and cannot access either the Internet or the file server.