Gateway GT704 user manual How many computers can be connected through the Gateway?

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Chapter 8 Troubleshooting

Connections

How many computers can be connected through the Gateway?

The Gateway is capable of 253 connections, but having no more than 45 con- nections is recommended. As the number of connections increases, the available speed for each computer decreases.

Security

What is the default username for the Gateway?

The default username for the router is admin (all lower case). To activate the password to protect the Gateway, change the default password, which is blank (no password) by default. Remote management is not available on the Gateway until the default password is changed.

Does the Gateway function as a firewall?

Yes. The Gateway provides its security through the use of NAT and SPI (Stateful Packet Inspection) firewall, which acts as a physical barrier between your net- work and the Internet.

What is NAT and how does it protect my network?

NAT (Network Address Translation) is a type of security that masks the private IP addresses of the computers on your network with a single public IP address. With NAT, the private IP address of the computers on your network is never transmit- ted over the Internet.

Which Virtual Private Networking (VPN) protocols are supported?

The Gateway supports pass-through for PPTP, L2TP, and IPSec.

Can I use Internet firewall or security programs with my network?

Because the Gateway has firewall security, it is not necessary to use any other pro- gram for security. The use of third-party firewall or Internet security software is not recommended, since certain programs create problems on a private network (BlackIce Defender, Norton Internet Security, or ZoneAlarm, for example).

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Contents DSL Gateway Table of Contents Using Utilities Setting Up a NetworkTroubleshooting Setting Up Static IP on the ComputerPackage Contents Introduction1Features Minimum System RequirementsIntroduction DSL Light Power LightGetting to Know the Gateway Internet Light Ethernet LightsUSB Light Phone PortReset Switch Power PortPower Switch USB PortSetting Up Gateway Connecting a Computer to the GatewayPage Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Page Setting Up the Gateway Installing Phone Filters Setting Up the Gateway Page Setting Up the Gateway Setting Up the DSL Connection Setting Up the Gateway Page Setting Up the Gateway Page Performing a Basic Setup Basic SetupPage Changing the Admin User Name and Password Click Save and Restart at the bottom of the screen To access the Web Configurator’s Advanced Setup screens Using Advanced SetupAccessing Advanced Setup WAN IP Address Broadband Connection via PPPoE screen Transparent BridgingObtain an IP Address through PPPoE or PPPoA Encapsulation PPPoA only PPP Auto ConnectPPP Auto Connect on Specify a Static IP Address LAN IP Address Dhcp ServerBeginning IP Address Ending IP AddressServices Blocking Lease TimeDomain Name DNS Dynamic or StaticWebsite Blocking Remote Management Application Layer Gateway and Port Forwarding DMZ Hosting Firewall HighMedium LowDynamic Routing NAT Network Address Translation Static RoutingUPnP Universal Plug and Play Time ZoneRemote Syslog Capture Viewing Gateway’s Status General StatusPage Routing Table ARP TableWAN Status LAN Status Active User ListThis page left intentionally blank Using Utilities Web Activity LogSystem Log DSL Settings Restore Default Settings Upgrade FirmwareSetting Up a Network EthernetPage Setting Up a Network Page Setting Up a Network USB Setting Up a Network Page Setting Up a Network Page Troubleshooting TroubleshootingCannot Use the Internet Physical ConnectionsFrequently Asked Questions Connection to the InternetWhich protocols does the Gateway support? Which connection speeds does the Gateway support?Is the Gateway flash-upgradeable? How do I do it? What is the valid IP range I can use for my home network?How do I find out which IP address my computer is using? Will my Xbox work with the Gateway?Yes, if the application is designed to run over a network What is the default username for the Gateway? What is NAT and how does it protect my network?How many computers can be connected through the Gateway? Does the Gateway function as a firewall?This page left intentionally blank Reference Locating Computer InformationLocating Windows Operating System Files Appendix a Reference Click Search Setting Up Static IP On the Computer Windows 98 SEPage 192.168.0.2 Windows Me Enter the following address in the Subnet mask text boxAppendix b Setting Up Static IP on the Computer 192.168.0.2 Windows Page Appendix b Setting Up Static IP on the Computer 192.168.0.2 Windows XP Page Appendix b Setting Up Static IP on the Computer 192.168.0.2 Comparing DSL Service with a Dial-Up Modem Computer SecurityInternet Browsers Gateway SecurityComputer Security Electronic Security 100 Specifications d GeneralWAN PPP, DHCP, Static IP Full-rate Adsl InterfaceEnvironmental LED IndicatorsPower, DSL, Internet, Ethernet 4, USB Access Point Glossary104 Ssid 106 Non-Windowsf System Setup Classic108 Appendix f Non-Windows Setup 110 Class B Equipment Regulatory Compliance NoticesModifications Miscellaneous Legal Notices All other names are the property of their respective ownersLimited Warranty 113114 Limited Warranty 116