ZyXEL USG 100 Unified Security Gateway Appliance for 5-25 users

£433.99 includes FREE UK Postage (other delivery options available)

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ZyXEL's new generation of Firewall. The USG series (Unified Security Gateways)deliver advanced UTM features while reducing the total cost of ownership. Next generation integrated Firewall and UTM device ideal for between 1-25 users. Features IPSec, VPN, VoIP security and application monitoring. Integrating cutting edge technologies the ZyWALL USG 100 is able to provide multi-layered security. Powered by Kaspersky Labs, the gateway anti-virus security service on the USG 100 has the world's fastest response time against emerging viruses. As a result, it helps to stop threats on the network edge and keeps viruses/malwares out of corporate networks. Dedicated built in Dual SecuASIC security co-processor means the ZyWALL USG 100 can deliver robust and reliable performance even under heavy networking loads. The IDP feature can detect harmful attacks and take necessary action against malicious or suspicious activities. A signature-based IDP engine can effectively detect protocol or traffic anomalies, support behavior pattern matching and prevent malicious attacks on the application layer. In addition to basic access control capabilities, the intelligent user aware policy engine on the USG 100 is designed to make packet forwarding decisions based on multiple criteria (such as user ID, user group, time of access and network quota etc). In addition, security administrators can apply access policies against a variety of security features such as VPN, Content Filter and Application Patrol.


In conjunction with VLAN and custom security zones, security policies can be enforced to prevent unauthorized access to network resources. The ZyWALL USG 100 provides bandwidth management features for traffic prioritization to guarantee or restrict bandwidth usage per interface/protocol. Security staff can allocate bandwidth for a variety of applications or computer hosts on the corporate network, regardless of the direction of the connection. For example, it's possible to assign higher priority and larger bandwidth to time-critical applications such as VoIP and video conferencing for quality transmission services. In addition, ZyWALL USG 100 allows you to keep track of bandwidth usage with comprehensive statistical reports. ZyXEL USG 100 is a VoIP friendly firewall, reducing security risks associated with VoIP. Offering the SIP/H.323 ALG feature it dynamically opens only the required ports during VoIP calls; once a call is closed, the opened ports are also closed to prevent port sniffing. The IDP feature can detect and prevent attacks usually associated with VoIP deployments. Ultimately, by establishing VoIP traffic over VPN's with traffic prioritisation, administrators can minimize security breaches while optimising call quality.


5 year warranty




Memory (Maximum)


Flash Memory




URL Blocking, Keyword Blocking, Exempt List (Blacklist and Whitelist), Blocks Java Applet, Cookies and Active X, Zone to Zone Protection, Transparently intercept mail via SMTP/POP3 protocols, Blacklist/Whitelist support, Support DNSBL checking, Statistics report, ICSA-Certified ZyXEL Anti-Virus or Kaspersky Anti-Virus, Stream-Based Anti-Virus, Covers Top Active Viruses in the Wild List, Scans HTTP/FTP/SMTP/POP3/IMAP4, Automatic Signature Updates


Encryption: AES/3DES/DES, Authentication: SHA-1/MD5, Key Management: Manual Key/IKE, Perfect Forward Secrecy: DH Group 1/2/5, NAT over IPSec VPN, Dead peer Detection/Relay Detection, PKI (X.509) Certificate Support, Certificate Enrollment (CMP/SCEP), Xauth Authentication, L2TP over IPSec Support

Firewall Filtering

ICSA Certified Firewall

User Authentication

Internal User Database  Microsoft Windows Active Directory  External LDAP/RADIUS User Database  ZyWALL OTP (One Time Password)  Force User Authentication (Transparent Authentication)


Console Port

1 x RS-232 DB9

LAN Ports

7 x RJ-45 10/100/1000Mbps Ethernet

USB Ports

2 x USB

Auxiliary Ports

1 x RS-232


Number of Slots




Role-Based Administration, Multiple Administrator Login, Multi-Lingual Web GUI (HTTPS/HTTP), Object-Based Configuration, Command Line Interface (Console/Web Console/SSH/TELNET), Comprehensive Local Logging, Syslog (send to up to 4 servers), E-mail Alert (send to up to 2 servers), SNMP v2c (MIB-II), Real-Time Traffic Monitoring, System Configuration Rollback, Text-Based Configuration File, Firmware upgrade via FTP/FTP-TLS/Web GUI, Advanced Reporting (Vantage Report), Centralized Network Management (Vantage CNM)



RoHS, WEEE, CSA International (ANS/UL60950-1,CSA60950-1, EN60950-1, IEC60950-1)


AC Input Voltage

100 to 240VAC


50 to 60Hz



Operating Temperature 0 to 50°C - Humidity 5 to 90%


LED Status Indicators


Case Colour



24.2cm (W) x 17.5cm (D) x 3.55cm (H) - Weight 1.2kg


  • ICSA-certified Firewall
  • Anti-Virus
  • IDP
  • IM/P2P Management
  • Anti-Spam
  • VPN
  • User-aware Configuration
  • Bandwidth Management
  • Multiple ISP Links

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For more information and our Returns Policy see here.

Catalogue No: EL-01025153