4
USG310/210/110
Unified Security Gateway—Advanced Series
Application Diagram
Anti-malware protection and
application optimization
• Enabling anti-virus, anti-spam and
intrusion prevention, business
networks gain deep, extensive
protection against all types of
malware threats
• Content filtering enables businesses
to deny access to Websites that are
malicious or not business-related
• Application intelligence technology
not only enable businesses to block
or throttle non-productive Web
applications, but also optimize
Web applications that increase
productivity
VPN application
• Branch offices, partners and home
users can deploy ZyXEL USGs for
site-to-site IPSec VPN connections
• Branch offices can additionally
deploy IPSec VPN HA (load
balancing and failover) for always
online VPN connectivity
• Remote users can securely access
company resources with their
computers or smartphones via SSL,
IPSec and L2TP over IPSec VPN
• The headquarter USG can also
establish an IPSec VPN connection
with Microsoft Azure for secured
access to a variety of cloud-based
applications
Internet
Unified Security Gateway
Remote
Desktop
Network
Extend
BI
System
Web
Apps
Inventory
Server
File
Sharing
OA, ERP,
CRM System
Server
DMZ Resources
Remote
Desktop
Network
Extend
BI
System
Web
Apps
Inventory
Server
File
Sharing
OA, ERP,
CRM System
Server
DMZ Resources
Workgroup
Productive Web applications
Non-productive
Web applications
Viruses, intrusions,
malicious Websites,
email spam
SPAM
Anti-Virus
Intrusion
Prevention
Anti-Spam
Content
Filtering
Application Intelligence
& Optimization
Headquarters
Branch
Office
Partner
Office
SSL VPN
IPSec VPN
IPSec VPN
IPSec VPN
IPSec VPN
IPSec VPN HA
L2TP over
IPSec VPN
USG40W
Unified Security
Gateway
USG110
Unified Security
Gateway
USG1100
Unified Security
Gateway
USG1900
Unified Security
Gateway
Traveling
Employee
Traveling
Employee
Traveling
Employee
Home
User
Microsoft
Azure
Internet
Unified Security Gateway
Remote
Desktop
Network
Extend
BI
System
Web
Apps
Inventory
Server
File
Sharing
OA, ERP,
CRM System
Server
DMZ Resources
Remote
Desktop
Network
Extend
BI
System
Web
Apps
Inventory
Server
File
Sharing
OA, ERP,
CRM System
Server
DMZ Resources
Workgroup
Productive Web applications
Non-productive
Web applications
Viruses, intrusions,
malicious Websites,
email spam
SPAM
Anti-Virus
Intrusion
Prevention
Anti-Spam
Content
Filtering
Application Intelligence
& Optimization
Headquarters
Branch
Office
Partner
Office
SSL VPN
IPSec VPN
IPSec VPN
IPSec VPN
IPSec VPN
IPSec VPN HA
L2TP over
IPSec VPN
USG40W
Unified Security
Gateway
USG110
Unified Security
Gateway
USG1100
Unified Security
Gateway
USG1900
Unified Security
Gateway
Traveling
Employee
Traveling
Employee
Traveling
Employee
Home
User
Microsoft
Azure
