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ZyXEL ZyWALL USG 20 Unified Security Gateway
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ZyXEL ZyWALL USG20 Internet Security Firewall with 4 Gigabit LAN/DMZ Ports, 2 IPSec VPN, SSL VPN, and 3G WAN Support 2 of 3
ZyXEL ZyWALL USG20 Internet Security Firewall with 4 Gigabit LAN/DMZ Ports, 2 IPSec VPN, SSL VPN, and 3G WAN Support 3 of 3
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Learn more about ZyXEL ZyWALL USG20 Internet Security Firewall with 4 Gigabit LAN/DMZ Ports, 2 IPSec VPN, SSL VPN, and 3G WAN Support:

Mfg Part#: ZWUSG20
Sku: 217232910
UPC: 760559118884
UPC 14: 00760559118884
Sales Rank: 29560
Untitled Document

Big Security for Small Businesses -Unified Security Gateway ZyWALL USG20

The USG20 brings you the power to control what happens on your network in a small, affordable package.

Going a step above simple URL-blocking, the USG20 brings you web-content filtering powered by Bluecoat. BlueCoat allows you to choose the level of content filtering, giving you complete control over what types of websites that can be accessed on your network.

ZyWALL’s Application Patrol gives you detailed control over the applications allowed to run on your network, while the built-in 150Mbps throughput firewall and web-content filtering protect your network from DoS attacks, phishing, and other threats.

Built with powerful Integrated High Performance Security architecture designed for Gigabit connections, a VPN Throughput of 75Mbps, up to 6,000 max sessions and 5 concurrent IPSec VPN tunnels, the USG20 has the power to monitor and protect your network without sacrificing network performance.

  • Robust hybrid VPN (IPSec and SSL)
  • Non-stop Internet access with multiple WAN and 3G backups
  • ICSA firewall, IPSec certification
  • Comprehensive report system
  • Anti-spam service

Secure Connectivity

Given the prevalence and importance of information technology (IT) systems today and the nature and scale of both the opportunities and risks associated with significant deployments of new networking technologies, organizations are forced to evaluate solutions to build up a safer infrastructure to secure online transactions, in which involve exchange of valuable information. The infrastructure should be tailored to meet operation requirements for expanding remote sites as well as mobile teleworkers.

Proactive Protection

Malicious virus, worm, exploits could cripple corporate networks and halt business transactions. In addition to severe financial loss, you also risk leakage of confidential information.
As mass-mailing software companies mushroom on the Internet, your network is bombarded with massive amounts of junk mails (spam). Without intelligent detection and proactive blocking, users have to go through the tedious and time-consuming task of sieving through the overflowing mailbox, and such scenario leads to serious productivity loss.

Policy Compliance

With numerous file-sharing (P2P) and Instant Messaging (IM) applications, it is easier for company employees to share files and chat online during work hours. Rapid file sharing not only compromises network safety with the sharing of questionable files containing malicious viruses, but may also violate copyright issues and create legal hassles.

Network Resilience

ISP links broken, hardware and software failure on the gateway, dead VPN tunnels—these are severe challenges IT staff face when designing the network infrastructure. In short, we need to take fault tolerance on the network path into consideration when build up a highly available network infrastructure for non-stop operations.


With Vantage CNM (Centralized Network Management), users can achieve the follow objects:

  • Easy VPN management and diagnostic capability
  • Complete security policies and UTM management
  • Low TCO of massive deployment and device maintenance
  • Active monitoring, alerting and comprehensive graphic reports
The solution provides an efficient centralized management system for enterprises of any size to reduce operational costs regardless of the number of branch offices or remote locations.


With the adoption of ZyXEL's USG 20, the following costs can be saved:

  • Save on device hardware maintenance fee: ZyXEL provides 2 years hardware warranty out of the factory.
  • Free software upgrade: now ZyXEL provides free software upgrades so you can enjoy complete protection without additional expense

Tech Specs

Tech Specs Firewall
Tech Specs ICSA-certified firewall
Tech Specs Routing and transparent (bridge) mode
Tech Specs Zone-based access control list
Tech Specs Stateful packet inspection
Tech Specs NAT, PAT
Tech Specs Policy base NAT
Tech Specs VLAN tagging
Tech Specs User-aware policy enforcement
Tech Specs SIP/H.323 NAT traversal
Tech Specs ALG supports custom ports

Tech Specs Virtual Private Network (VPN)
Tech Specs ICSA-certified IPSec VPN
Tech Specs PPTP, L2TP, IPSec
Tech Specs Algorithm: AES/3DES/DES
Tech Specs Authentication: SHA-1/MD5
Tech Specs Key management: Manual key/IKE
Tech Specs Perfect forward secrecy: (DH group) supprt 1, 2, 5
Tech Specs IPSec NAT traversal
Tech Specs Dead peer detection/relay detection
Tech Specs PKI (X.509) certificate support
Tech Specs Centralize VPN Support
Tech Specs Simple wizard support
Tech Specs Auto reconnect VPN
Tech Specs VPN HA (redundant remote VPN gateways)

Tech Specs SSL VPN
Tech Specs Clientless secure remote access
Tech Specs Support reverse proxy mode and full tunnel mode
Tech Specs Unified policy enforcement
Tech Specs Supports two-factor authentication
Tech Specs Customizable user portal

Tech Specs Application Patrol
Tech Specs Application, IM/P2P, stream base media, VoIP granular access control
Tech Specs Detail access control of IM (Chat, file transfer, video)
Tech Specs Application and IP/P2P bandwidth control
Tech Specs User authentication support
Tech Specs IM/P2P signature auto update
Tech Specs Support more than 15 catalogs IM and P2P
Tech Specs Real-Time statistical reports
Tech Specs Maximum/guaranteed bandwidth

Tech Specs Anti-Spam
Tech Specs Zone to zone protection
Tech Specs Transparently intercept mail via SMTP/POP3 protocols
Tech Specs Blacklist/whitelist support
Tech Specs Support DNSBL checking
Tech Specs Spam tag support
Tech Specs Statistics report

Tech Specs Content Filtering
Tech Specs Social networking control
Tech Specs Web security - ZyXEL safe browsering
Tech Specs URL blocking, keyword blocking
Tech Specs Profile base setting
Tech Specs Exempt list (blacklist and whitelist)
Tech Specs Blocks java applet, cookies and active X
Tech Specs Dynamic URL filtering database (powered by BlueCoat)
Tech Specs Unlimited user licenses support
Tech Specs Customize warning messages and redirect URL

Tech Specs Networking
Tech Specs Routing mode/bridge mode/mixed mode
Tech Specs Layer 2 port grouping
Tech Specs Ethernet/PPPoE
Tech Specs Tagged VLAN (802.1Q)
Tech Specs Virtual interface (alias interface)
Tech Specs Policy-based routing (user-aware)
Tech Specs Policy-based NAT (SNAT)
Tech Specs Dynamic routing(RIP v1/v2, OSPF)
Tech Specs DHCP client/server/relay
Tech Specs Dynamic DNS support
Tech Specs WAN Trunk more than 2 port
Tech Specs Per host session limit
Tech Specs Guaranteed bandwidth
Tech Specs Maximum bandwidth
Tech Specs Priority-bandwidth utilization

Tech Specs Authentication
Tech Specs Local user database
Tech Specs Microsoft Windows active directory integrate
Tech Specs External LDAP/RADIUS user database
Tech Specs Xauth over RADIUS for IPSec IPV
Tech Specs Forced user authentication (transparent authentication)
Tech Specs IP/MAC address binding

Tech Specs System Management
Tech Specs Role-based administration
Tech Specs Multiple administrator login
Tech Specs Multi-Lingual Web GUI (HTTPS/HTTP)
Tech Specs Out-of-band management (AUX)
Tech Specs Object-based configuration
Tech Specs Command line interface (console/web console/SSH/TELNET)
Tech Specs SNMP v2c (MIB-II)
Tech Specs System configuration rollback
Tech Specs Firmware upgrade via FTP/FTP-TLS/Web GUI

Tech Specs Logging/Monitoring
Tech Specs Comprehensive local logging
Tech Specs Syslog (send to up to 4 servers)
Tech Specs E-mail alert (send to up to 2 servers)
Tech Specs Real-Time traffic monitoring
Tech Specs Built-in daily report
Tech Specs Advanced reporting (Vantage Report)
Tech Specs Centralized Network Management (Vantage CNM) manageable

Tech Specs Features
Tech Specs Unified Security Gateway for SB (1~5 PC Users)
Tech Specs All Gigabit Ethernet interface hardware design
Tech Specs High-performance multi-layer threat protection
Tech Specs Hybrid VPN (IPSec and SSL) secures connection
Tech Specs 3G USB dongle as the backup WAN

Tech Specs System Capacity & Performance
Tech Specs SPI Firewall Throughput*1: 100 Mbps
Tech Specs VPN Throughput (3DES)*2: 30 Mbps*4
Tech Specs Unlimited User Licenses
Tech Specs Max. Sessions*6: 6,000
Tech Specs New Session Rate: 900
Tech Specs Max. Concurrent IPSec VPN Tunnels: 2
Tech Specs Max. Concurrent SSL VPN Users: 1
Tech Specs Included SSL VPN Users: 1
Tech Specs Customizable Zone

Tech Specs Hardware Specifications
Tech Specs 10/100/1000 Interfaces (Copper): 4 x LAN/DMZ, 1 x WAN
Tech Specs USB ports: 1

Tech Specs Power Requirements
Tech Specs Input Voltage: 100 - 240 V AC, 50 - 60 Hz, 1.2 A
Tech Specs Power Rating: 15 W Max

Tech Specs Physical Specifications
Tech Specs Dimensions: 215.75 (W) x 140 (D) x 33 (H) mm
Tech Specs Weight: 0.38 kg

Tech Specs Environmental Specifications
Tech Specs Operating temperature: 0ºC to 40ºC
Tech Specs Storage temperature: 0ºC to 40ºC
Tech Specs Operating humidity: 20% to 95% (non-condensing)
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