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

    4-port Switch ADSL Router with Firewall & VPN

    The GS-1540GADSL Security Router is a ADSL Gateway with 4-port Ethernet 10/100BaseT Switch which offers network security by integrating such features as IPSec, PPTP, and L2TP VPN (Virtual Private Networking) capabilities, built-in Firewall with SYSLOG reporting function, and Alerting via Email and Paging (SNPP).


    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)
    • 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)
    • Universal Plug-and-Play (UPnP)

    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
    • Dynamic Address-User Mapping
    • Supports Multiple Interfaces
    • Comprehensive Logging via Syslog
    • Alerting via E-mail and Paging (SNPP -- RFC1861)

    Application Support:

    • MS NetMeeting
    • Online Gaming
    • Peer-to-peer file transfer
    • HTTP server
    • FTP server
    • Telnet server

    Secure VPN:

    • Supports All Three Types of VPNs - IPSec, PPTP and L2TP
      • Security Architecture for the Internet Protocol (RFC2401)
      • IP Security Document Roadmap (RFC2411)
      • IP Authentication Header (RFC2402)
      • IP Encapsulating Security Payload (RFC2406)
      • The Internet IP Security Domain of Interpretation for ISAKMP (RFC2407)
      • HMAC: Keyed-Hashing for Message Authentication (RFC2104)
      • The Use of HMAC-MD5-96 within ESP and AH (RFC2403)
      • The Use of HMAC-SHA-1-96 within ESP and AH (RFC2404)
      • All AH and ESP Transforms
    • Supported encryption algorithms
      • 56bits DES and 168bits Triple DES (3DES)
      • Blowfish and Two-Fish
      • RC4 and RC5
    • Seamless Remote Access
    • Advanced Key Management
      • Pre-shared Key
      • Digital Signature
    • UDP Encapsulation for IPSec
    • X.509 Certificate-based Authentication
    • Optional Hardware Hi-Fn security accelerator module

    Network Management:

    • Embedded Web-based Graphical User Interface (GUI) configuration tool
    • Console Command Line access via serial interface or remote telnet
    • Firmware update and configuration backup via Web-based GUI
    • TFTP firmware upgrade
    • SNMP V1, V2c agent
    • SSH V2.0 supported


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

    Hardware Specifications:

    • LAN: 4-port Ethernet 10/100BaseT auto-sensing
    • WAN: RJ-11 ADSL Line
    • Console: RS-232 Serial Port
    • Reset Button for restoring factory default configuration
    • Dimensions (WxLxH): 9.25"x6.7"x2"

    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

    Technology: ADSL (G.992.1)
    Linux support: Yes
    Price per Modem/NIC:  US$449.00

    external WWW: GreatSpeed, a RIAS Company : http://www.greatspeed.com/products/1540g.htm http://www.greatspeed.com/products/1540g.htm

    external PDF: GreatSpeed, a RIAS Company : http://www.greatspeed.com/pdf/specs/gs-1540g.pdf http://www.greatspeed.com/pdf/specs/gs-1540g.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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