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1
Descriptions
The Planet new SHDSL family member GRT-504 is the G.SHDSL.bis router that complies with
ITU-T G.991.2 standard and provides affordable, flexible, efficient Internet access solution for
SOHO and Small Medium Business environment. The GRT-504 supports business-class,
multi-range from 384 Kbps to 11.4 Mbps (4-wire) symmetric data rates and also can be connected
as the LAN-to-LAN network connection at the distance up to 6.7km (4.2 miles) by using existing
telephone copper wires.
The Planet GRT-504 is integrated high-end Bridging/Routing capabilities with advanced functions
of Firewall, QoS, DMZ, Virtual Server, and VPN pass-through. And because of the network
environment growing rapidly, Virtual LAN has become more and more important feature in
internetworking industry. The GRT-504 supports IEEE 802.1Q and port-based VLAN over ATM
network.
With the built-in Simple Network Management Protocol (SNMP) and web-based management, the
GRT-504 offers an easy-to-use, platform-independent management and configuration facility. And
the GRT-504 also provides Command-Line Interface; it can be accessed via Telnet and the
console port. The network administrator can manage the device by proper way.
1.1
Features
♦
High Speed Symmetric Data Transmission：The GRT-504 supports the latest
G.SHDSL.bis technology, provides the higher symmetric data rate up to 11.4 Mbps on 4
wires.
♦
CO and CPE side Support：Provide the back-to-back connection.
♦
Firewall: It supports Natural NAT firewall and Advanced Stateful packet Inspection (SPI)
firewall functions.
♦
QoS (Quality of Service): The GRT-504 supports ATM QoS and IP QoS. The ATM QoS
includes UBR (Unspecified bit rate), CBR (Constant bit rate), VBR-rt (Variable bit rate
real-time), and VBR-nrt (Variable bit rate non-real-time). Also, the traffic classification
based on IP, IP range, port, protocol, and precedence.
♦
VLAN Support：It supports the IEEE 802.1Q Tagged and port-based VLAN. It offers
significant benefit in terms with efficient use of bandwidth, flexibility, performance, and
security.
♦
Bridge and Router Modes：The GRT-504 supports two connection modes. Currently, it
comes pre-configured with routing mode. Note that, routing mode and bridging mode
cannot be used simultaneously.
♦
Virtual Server：
The required setup is quick and easy.
♦
VPN Pass through Support：
using PPTP, L2TP, and IPSec are transparently supported - no configuration is required.
♦
DMZ Support：The GRT-504 can translate public IP address to private IP address to allow
unrestricted 2-way communication with Servers or individual users on the Internet. This
provides the most flexibility to run programs, which could be incompatible in NAT
environment.
♦
RIPv1/v2 Routing：It supports RIPv1/v2 routing protocol for routing capability.
This feature allows Internet users to access Internet servers on your LAN.
PCs with VPN (Virtual Private Networking) software
GRT-504 4-Wire G.SHDSL.bis Firewall Router User's Manual
7
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