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  • GreatSpeed (GreatSpeed, a RIAS Company ) : GS-1540G Firewall

    4-port ADSL Router with Switch & Firewall

    The GreatSpeed GS-1540G Firewall is a powerful ADSL Gateway with 4-port Ethernet 10/100BaseT Switch which integrates such features as built-in firewall, intrusion detection system (IDS), IDS alerting via email, and syslog reporting function. The built-in 4-port switch eliminates the need and cost for an extra switch when sharing a broadband connection with multiple users. Certified with the ICSA Labs Residential 4.0 Firewall, the GS-1540G Firewall has demonstrated and proven to provide all the essential security needs for the consumer and small office or home office (SOHO) users.


    ADSL Standards:

    • ANSI T1.413 Issue 2
    • ITU 992.1 (G.dmt), ITU 992.2 (G.Lite)
    • ITU G.994.1 (G.hs) automatic mode sensing

    Data Rates:

    • Full Rate: Up to 8Mbps downstream/800Kbps upstream
    • G.Lite: Up to 1.5Mbps downstream/512Kbps upstream
    • Automatic rate adaptation in 32Kbps steps

    ATM Standards:

    • UNI I.363.5 ATM Adaptation Layer 5 (AAL5), ), ATM Adaptation Layer 2 (AAL2)
    • Up to 8 Virtual Circuits Connections (VCC)
    • Class of Services: UBR, CBR
    • ITU I.610 OAM F5 Loopback

    WAN Protocols:

    • LLC Encapsulation and VC Multiplexing
    • IETF RFC1483/2684 Multiprotocols over ATM
    • IETF RFC1577 Classical IP over ATM
    • IETF RFC2516 PPP over Ethernet
    • IETF RFC2364 PPP over ATM

    Routing Protocols:

    • Static Route and Dynamic Route: RIP V1 and RIP V2
    • Dynamic Host Configuration Protocol (DHCP) Server, Client and Relay
    • DNS Relay Agent, DNS Client
    • Network Address Translation (NAT)/Network Address Port Translation (NAPT)
    • Point-to-Point Protocol (PPP)
    • Simple Network Time Protocol
    • Universal Plug-and-Play (UPnP) NAT traversal

    Bridging Protocols:

    • IEEE 802.1d Transparent Bridging
    • Spanning Tree Algorithm (STA)
    • Up to 128 Learning MAC addresses
    • Bridge filter function
    • IETF RFC2516 PPP over Ethernet Relay
    • IETF RFC1483/2684 Bridged


    • Stateful Packet Inspection
    • Intrusion Detection
    • DoS (Denial of Service) Prevention
    • Comprehensive Logging via Syslog (RFC3164)
    • Alerting via E-mail
    • ICSA Labs Residential Firewall 4.0 certified

    Application Support:

    • Multiple IPSec/PPTP/L2TP Tunnel Pass Through
    • MS NetMeeting
    • MSN Messenger (w/UPnP)
    • Online Gaming
    • Peer-to-peer file transfer
    • HTTP server

    Network Management:

    • Embedded Web-based Graphical User Interface (GUI) configuration tool
    • Built-in Configuration Wizard
    • Console Command Line access via serial interface or remote telnet
    • Firmware update via Web-based GUI
    • TFTP firmware upgrade
    • Configuration backup/restore
    • Automatic timer for enabling remote admin task
    • Comprehensive device status on Web-based GUI
    • SNMP V1 agent


    • PPP: Challenge Handshake Authentication Protocol (CHAP) and Password Authentication Protocol (PAP)
    • Three levels of password-protected access for console, Telnet and Web GUI configuration tool

    Hardware Specifications:

    • LAN: 4-port Ethernet 10/100BaseT full-duplex auto-sensing
    • WAN: RJ-11 ADSL Line
    • Console: RS-232 Serial Port
    • Power ON/OFF Switch
    • Dimensions (WxLxH): 9.25"x6.7"x2"
    Hardware Features:
    • Ethernet ports MDI/MDI-X switch
    • Reset Button for restoring factory default configuration

    LED Status Indicators:

    • PWR
    • ADSL
    • ACT
    • LAN1
    • LAN2
    • LAN3
    • LAN4

    Power Requirements:

    • Input: 100-240VAC, 60Hz, 1A
    • Output: +12VDC, 1.25A


    • FCC part 15 class B
    • ITU-T K.21 standard compliant

    Package Contents:

    • GS-1540G Firewall 4-port ADSL Router with Switch & Firewall
    • RJ-45 Ethernet cable
    • RJ-11 ADSL Cable
    • RS-232 Serial Cable
    • Power adapter
    • Installation Guide
    • Firewall Configuration Guide

    Specifications are subject to change without notice.

    Technology: ADSL (G.992.1)
    Linux support: Yes
    Price per Modem/NIC:  US$225.00

    external WWW: GreatSpeed, a RIAS Company : http://www.greatspeed.com/products/1540g_fw.htm web page used to be available at: http://www.greatspeed.com/products/1540g_fw.htm

    external PDF: GreatSpeed, a RIAS Company : http://www.greatspeed.com/pdf/specs/gs-1540gfw.pdf PDF documentation used to be available at: http://www.greatspeed.com/pdf/specs/gs-1540gfw.pdf
    If you are the producer of this modem / NIC and want to correct/update the presented information, please feel free to register for direct database access.
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