Unified Threat Management Products | GTA, Inc.
GB-300 Technical Specifications

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GB-300 Technical Drawing

firewall for small business
[ Front ]

firewall for small business
[ Back ]


25 or 50 Concurrent Outbound Users (Upgradeable to 50)
3 10/100/1000 Ethernet Ports
Stateful Packet Inspection
Built-in IPSec, L2TP, PPTP VPN
50 User = 10,000 - 25 User = 5,000 Concurrent Connections
Ideal firewall for small business

System Software

Firewall Modes & System Features
GB-OS Version 6.2.03
Stateful Packet Inspection
Threat Management Features
Secure Transparent NAT
Encrypted Remote Management
Unrestricted Concurrent User License
Networking / Connectivity
Interface Bridging
IP Aliasing
IP Pass-through
Stealth Mode
Time-based Filters
Static Routing
Address Objects
Gateway Failover Selector [Multiple WAN Support]
Dynamic Gateway Architecture
Gateway Selector
PPPoE / PPP / DHCP Client / PPTP Client
USB GSM Modem / ISDN Support / Async Modem Support / PAP & Chap Auth
VLAN Tagging
User Authentication
LDAP, RADIUS and Active Directory Single Sign-On
Network Time Service [NTP]
DHCP Server
Dynamic DNS
DNS Proxy
SMTP Email Proxy
Multiple Email Domains Supported
HTTP Proxy [Traditional and Transparent]
Traffic Management
Traffic Shaping(OSPF, RIP v1, v2)
Policy Based Routing (Source, Destination, Service/Port))
Bandwidth Management
Content Filtering
Local Content Lists (Allow Deny URL's)
Access Control Lists (Policies)
Block Java, Javascript, ActiveX
Intrusion & DoS Prevention
Alarm Coalescing
Customizable IPS Policies
Customizable Alarm Thresholds
Email and SMS Alarm Notifications
IP Spoofing Protection
DoS Prevention and Alerting
Remote Logging to GTAsyslog [WELF Format]
SNMP Management Read
Active VPN Tunnel Status


IPSec VPN Standard
IPSec Mobile VPN Client with 2 licenses
GTA SSL VPN Client with 2 licenses
LT2P Remote Access Support
PPTP Remote Access Support
Internet Key Exchange (IKE)
VPN Certificate or Pre-shared Secret Authentication
NAT-T Support
Outbound Access Control
Remote Network Access Control
Outbound Access Control
Inbound Access Control
Manual Key Exchange
Mobile VPN Client Support
Full Strength Encryption
DES, 3DES, AES, Blowfish, Camellia
SHA-1, SHA-2 and MD5 Digital Signatures


16 GB mSATA, SSD Memory
AMD G series T40E APU, 1 GHz dual core
3 10/100/1000 NICs
DB-9 Serial Interface
2 USB Interface


1" h x 6.5" w x 6.5" d
(2.1cm x 16.5cm x 16.5cm)
2.0 lbs (.9 kg)


External Transformer Type, Multi-Voltage
Input: 100-240 V AC 50-60Hz (0.8A)
Output: 12 V DC (200 mA)
Power consumption: 24W (max)


Mail Proxy Anti-Spam Subscription Option
Mail Proxy Anti-Virus Feature
Web Content Filtering Subscription Option
Additional Mobile IPSec VPN Client Licenses
Additional Mobile GTA SSL VPN Client Licenses

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'Global Technology Associates' and 'GTA' are service marks of Global Technology Associates, Incorporated.