Linksys WRT51AB manual What is DMZ Hosting?, How many ports can be simultaneously forwarded?

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Instant Wireless® Series

your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.

What is DMZ Hosting?

Demilitarized Zone (DMZ) allows one IP address (computer) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP if you want to use DMZ Hosting. To get the LAN IP address, see “Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter.”

If DMZ Hosting is used, does the exposed user share the public IP with the Router? No.

Does the Router pass PPTP packets or actively route PPTP sessions? The Router allows PPTP packets to pass through.

Is the Router cross-platform compatible?

Any platform that supports Ethernet and TCP/IP is compatible with the Router.

How many ports can be simultaneously forwarded?

Theoretically, the Router can establish 520 sessions at the same time, but you can only forward 10 ranges of ports.

Does the Router replace a modem? Is there a cable or DSL modem in the Router? No, the Router must work in conjunction with a cable or DSL modem.

Which modems are compatible with the Router?

The Router is compatible with virtually any cable or DSL modem that supports Ethernet.

What are the advanced features of the Router?

The Router’s advanced features include Advanced Wireless settings, Filtering, Port Forwarding, Routing, DMZ Hosting, and MAC Address Cloning.

What is the maximum number of VPN sessions allowed by the Router?

The maximum number depends on many factors. At least one IPSec session

Dual-Band Wireless A+B Broadband Router

will work through the Router; however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.

How can I check whether I have static or DHCP IP Addresses?

Consult your ISP to obtain this information.

How do I get mIRC to work with the Router?

Under the Port Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC.

Can the Router act as my DHCP server?

Yes. The Router has DHCP server software built-in.

Can I run an application from a remote computer over the wireless network?

This will depend on whether or not the application is designed to be used over a network. Consult the application’s documentation to determine if it supports operation over a network.

What is the IEEE 802.11a standard?

It is one of the IEEE standards for wireless networks. The 802.11a standard allows wireless networking hardware from different manufacturers to commu- nicate, provided that the hardware complies with the 802.11a standard. The 802.11a standard states a maximum data transfer rate of 54Mbps and an oper- ating frequency of 5GHz.

What is the IEEE 802.11b standard?

It is one of the IEEE standards for wireless networks. The 802.11b standard allows wireless networking hardware from different manufacturers to commu- nicate, provided that the hardware complies with the 802.11b standard. The 802.11b standard states a maximum data transfer rate of 11Mbps and an oper- ating frequency of 2.4GHz.

What IEEE 802.11a features are supported?

The product supports the following IEEE 802.11a functions:

•OFDM protocol

•Multi-Channel Roaming

•Automatic Rate Selection

•RTS/CTS feature

•Fragmentation

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Contents Dual-Band Wireless A+B Broadband Router Copyright & Trademarks Table of Contents Environmental 127 Common Problems and Solutions Frequently Asked QuestionsIntroduction Features Router’s FunctionsIP Addresses What’s an IP Address?Dynamic IP Addresses Dhcp Dynamic Host Configuration Protocol ServersRouter Setup Overview Router’s Front Panel LEDs Getting to Know the Dual-Band Wireless A+B Broadband RouterRouter’s Back Panel Proceed to Connect the Router LAN IndicatorsInternet Indicators Overview Wired Connection to a PCConnect the Router Configure the PCs Wireless Connection to a PCConfiguring Windows 98 and Millennium PCs Go to Configure the Router’s Basic SettingsConfiguring Windows 2000 PCs Configuring Windows XP PCs Configure the Router’s Basic Settings Automatic Configuration Dhcp Enter the Default GatewayStatic or Fixed IP Address Enter the Internet IP AddressHow to Access the Web-based Utility Router’s Web-based UtilityAutomatic Configuration Dhcp SetupStatic IP Pptp 5GHz, 802.11a 5GHz, 802.11a WEP 4GHz, 802.11b WEP Password StatusLAN Dhcp Log HelpAdvanced Tabs Advanced Wireless 5GHz, 802.11a802.1x Configuration Radius Server Filters 11-20 , 21-30 , 31-40 , or 41-50 from Private MAC Filter To set up a filterPrivate IP Filter Applications External Port TCP Protocol UDP Protocol Port ForwardingRouting Click the Delete This Entry buttonDMZ Host MAC Address Clone Appendix a Troubleshooting Common Problems and SolutionsNeed to set a static IP address on a PC For Windows NTFor Windows 98, Me, 2000, and XP For Windows XPWant to test my Internet connection Need to set up a server behind my Router TCP UDPCan’t get the Internet game, server, or application to work To start over, I need to set the Router to factory default Need to upgrade the firmwareFirmware upgrade failed, and/or the Diag LED is flashing My DSL service’s PPPoE is always disconnectingFrequently Asked Questions Click the Advanced = Filters tabDoes the Router support ICQ send file? How can I block corrupted FTP downloads?What is DMZ Hosting? What are the advanced features of the Router?What is the Ieee 802.11a standard? What is the Ieee 802.11b standard?What Ieee 802.11b features are supported? What is ad-hoc mode?What is infrastructure mode? What is roaming?What is WEP? What is a MAC Address?How do I reset the Router? How do I resolve issues with signal loss?Appendix B How to Ping Your ISP’s E-mail & Web Addresses Step One Pinging an IP AddressBackground Appendix C Configuring Wireless SecurityStep Two Pinging for a Web Address 802.1x Authentication WEP EncryptionMD5 Authentication for Windows XP Figure C-2Figure C-5 Digital Certificate Installation Figure C-9Click Install this certificate Figure C-13TLS Authentication for Windows XP Figure C-18Figure C-21 Figure C-25 For Windows 95, 98, and MeFigure D-3 For Windows NT, 2000, and XPAppendix E Glossary 111 113 115 117 119 121 123 125 Appendix F Specifications One 10/100 RJ-45 Port for Cable/DSL ModemCategory 5 Ethernet Network Cable or better EnvironmentalAppendix G Warranty Information Sales Information Technical Support RMA Issues FaxAppendix H Contact Information Web site FTP siteCopyright 2002 Linksys, All Rights Reserved
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