Paradyne 6388 manual What is a Firewall?, What is NAT?, What is a DMZ?

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Terminology

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What is a Firewall?

A firewall is protection between the Internet and your local network. It acts as the firewall in your car does, protecting the interior of the car from the engine. Your car's firewall has very small opening that allow desired connections from the engine into the cabin (gas pedal connection, etc), but if something happens to your engine, you are protected.

The firewall in the router is very similar. Only the connections that you allow are passed through the firewall. These connections normally originate from the local network, such as users web browsing, checking e-mail, downloading files, and playing games. However, you can allow incoming connections so that you can run programs like a web server.

What is NAT?

NAT stands for Network Address Translation. Another name for it is Connection Sharing. What does this mean? Your ISP provides you with a single network address to access the Internet with. However, you may have several machines on your local network that want to access the Internet at the same time. The router provides NAT functionality that converts your local network addresses to the single network address provided by your ISP. It keeps track of all these connections and makes sure that the correct information gets to the correct local machine.

Occasionally, there are certain programs that don't work well through NAT. Some games and other specialty applications have a bit of trouble. The router contains special functionality to handle the vast majority of these troublesome programs and games. NAT does cause problems when you want to run a server. See the DMZ section below.

What is a DMZ?

DMZ really stands for Demilitarized Zone. It is a way of separating part of your local network so that is more open to the Internet. Suppose that you want to run a web server, or a game server. Normal servers like these are blocked from working by the NAT functionality. The solution is to isolate the single local computer into a DMZ. This makes the single computer look like it is directly on the Internet, and others can access this machine.

6388-A2-GB20-00

February 2005

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Contents Wireless Router Copyright 2005 Paradyne Corporation All rights reserved Important Safety Instructions 6388-A2-GB20-00 Canada EMI Notice February Contents Contents Troubleshooting TerminologyIndex Contents February Document Purpose and Intended Audience Document SummaryProduct-Related Documents About This Guide February Definitions Features of the 6388 Wireless RouterSystem Requirements Ports and Buttons Back PanelLED Description Front Panel Packing List Introduction February Overview Connecting the HardwareHardware Installation Configuring Your PC’s IP Address Assigning an IP Address to your PC Automatically by DhcpWindows XP Network Connections in Windows XP TCP/IP Properties in Windows XP WindowsWindows ME Windows 95 Windows NT Logging Into Your Router Using the Web InterfaceQuick Start HomeQuick Start Dhcp Quick Start Static Wide Area Network Connection SetupLocal Area Network Connection Saving ChangesConfiguring the WAN New Connection PPPoE Connection SetupPPPoE Connection Setup PPPoA Connection Setup PPPoA Connection Setup Static Connection Setup Static IP Connection Setup Dhcp Connection Setup10. Dhcp Connection Setup Bridged Connection 11. Bridged Connection SetupClip Connection Modify an Existing Connection 12. Clip Connection Setup13. Modem Setup Modem SetupTsml Enable/Disable Dhcp Configuring the LANChanging the Routers IP address 16. Ethernet Switch Ethernet Switch17. Firewall/NAT Services Firewall/NAT ServicesUPnP AdvancedSntp Snmp Port Forwarding IP QoS22. Port Forwarding Netmeeting 23. IP Filters IP FiltersVlan LAN Clients25. Vlan Bridge Filters26. Bridge Filters 27. Web Filters Web Filters28. Multicast MulticastStatic Routing Igmp Snooping30. Static Routing Dynamic Routing31. Dynamic Routing Log Out Access ControlSetup WirelessWireless Setup 2 Parameter Description Security Configuration35. Wireless Security Screen 37. Wireless Security 802.11x Screen Management 39. Wireless Management Access List Screen40. Wireless Management Associated Stations Screen System Commands ToolsRemote Log Severity Levels Description 43. Remote Log User Management44. User Management Update GatewayAnalyzer 45. Update Gateway47. Ping Test Ping Test48. Modem Test Modem Test49. Network Statistics Status50. Modem Status Using the Web Interface February You Cannot Connect to the Router Router Is Not FunctionalLEDs Blink in a Sequential Pattern Status LED Continues to BlinkStatus LED is Always Off What is a Firewall? What is NAT?What is a DMZ? What is a Router? Index IN-2 IN-3 IN-4

6388 specifications

The Paradyne 6388 is a versatile high-speed broadband modem, primarily designed for the demanding needs of data transmission in various networking environments. Launched by Paradyne, a company known for its pioneering technology in digital communications, the 6388 modem exemplifies the capability to handle significant bandwidth while delivering dependable performance.

One of the main features of the Paradyne 6388 is its robust support for a wide range of transmission standards. It is compatible with both DSL and T-1 connections, making it an adaptable solution for different types of networks. This flexibility allows organizations to utilize the 6388 in a variety of scenarios, whether they are operating in rural areas with limited infrastructure or urban environments with established high-speed connectivity.

The modem's built-in technologies significantly enhance its performance and reliability. With integrated error correction and advanced modulation techniques, the 6388 ensures that data keeps flowing smoothly even under less-than-optimal conditions. This results in better performance, reduced latency, and improved overall user experience, particularly for applications that require consistent throughput, such as video conferencing or large data transfers.

Another noteworthy characteristic of the Paradyne 6388 is its ease of configuration and management. The device typically includes intuitive web-based management interfaces, allowing network administrators to set up, monitor, and maintain the modem with ease. Features such as SNMP (Simple Network Management Protocol) support further facilitate network management, enabling remote monitoring of device status and performance metrics.

The 6388 is also designed with security in mind. It incorporates advanced features such as encryption and authentication protocols to safeguard data transmission, ensuring that sensitive information remains protected from unauthorized access.

Power efficiency is another important aspect of the Paradyne 6388. The design focuses on minimizing energy consumption while still delivering maximum performance, making it an eco-friendly choice for organizations aiming to reduce their carbon footprint.

In summary, the Paradyne 6388 modem stands out due to its versatility, advanced features, and reliable performance. Its compatibility with multiple standards, integrated technologies for enhanced performance, user-friendly management tools, robust security features, and energy-efficient design make it a robust solution for various networking needs. Whether for business communications or industrial applications, the 6388 continues to serve as a valuable asset in the digital landscape.
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