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 possesses high-end Bridging / Routing capabilities with advanced functions of Firewall, QoS, DMZ, Virtual Server, and VPN pass-through. Besides, the GRT-504 supports IEEE 802.1Q and port-based VLAN over ATM network as Virtual LAN has become more and more important feature in the growing internetworking industry.

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. The GRT-504 also provides Command-Line Interface which can be accessed via Telnet and the console port. Therefore, the network administrator can manage the device by proper way.

• 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-wire.
• CO and CPE side Support:Provides the back-to-back connection.
• Firewall: 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:Supports the IEEE 802.1Q Tagged and port-based VLAN, offering
significant benefit in terms with efficient use of bandwidth, flexibility, performance, and security.
• Bridge and Router Modes:Supports two connection modes. Currently, it comes
pre-configured with routing mode. Note: routing mode and bridging mode cannot be
used simultaneously.
• Virtual Server:Allows Internet users to access Internet servers on your LAN.
The required setup is quick and easy.
• VPN Pass through Support:PCs with VPN (Virtual Private Networking) software
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:Supports RIPv1/v2 routing protocol for routing capability
• Simple Network Management Protocol (SNMP):An easy way to remotely manage
the router via SNMPv1/v2
• Fully ATM protocol stack implementation over G.SHDSL.bis
• PPPoA and PPPoE support user authentication with PAP / CHAP / MS-CHAP