RF-Link Technology WRT55AG manual Need to set up a server behind my Router, Tcp Udp

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Instant Wireless® Series

D.Make sure you have the right cable. Check to see if the Internet column has a solidly lit Link/Act LED.

E.Make sure the cable connecting from your cable or DSL modem is con- nected to the Router’s Internet port. Verify that the Status page of the Router’s web-based utility shows a valid IP address from your ISP.

F.Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router, cable/DSL modem, and computer. Check the Status tab of the Router’s web-based utility to see if you get an IP address.

4. I am not able to access the Setup page of the Router’s web-based utility.

A.Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly connected to the Router.

B.Refer to “Appendix D: Finding the MAC Address and IP address for Your Ethernet Adapter” to verify that your computer has an IP Address, Subnet Mask, Gateway, and DNS.

C.Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”

D.Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE users).”

5.I can’t get my Virtual Private Network (VPN) working through the Router.

Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router, go to the System tab. Make sure you have IPsec pass- through, L2TP, and PPTP pass-through enabled.

VPNs that use IPSec with the ESP (Encapsulation Security Payload known as protocol 50) authentication will work fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.

VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router. AH has limitations due to occasional incom- patibility with the NAT standard.

Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and your local IP address. For example, if your VPN server assigns an IP address 192.168.1.X (X is a number from 1 to 254) and your local LAN IP address is 192.168.1.X (X is the same number used in the VPN IP address), the Router will have difficulties routing information to the right location. If you change the Router’s IP address to 192.168.2.1, that should solve the problem. Change the Router’s IP address through the Setup tab

Dual-Band Wireless A+G Broadband Router

of the web interface. If you assigned a static IP address to any computer or net- work device on the network, you need to change its IP address accordingly to 192.168.2.Y (Y being any number from 1 to 254). Note that each IP address must be unique within the network.

Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec server. Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for details.

Check the Linksys website for more information at www.linksys.com.

6. I need to set up a server behind my Router.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. You can get more information by viewing the doc- umentation provided with the server you installed. Follow these steps to set up port forwarding through the Router’s web-based utility. We will be setting up web, ftp, and mail servers.

A.Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Advanced => Port Forwarding tab.

B.Enter any name you want to use for the Customized Application.

C.Enter the External Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80.

D.Check the protocol you will be using, TCP and/or UDP.

E.Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check “Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

F.Check the Enable option for the port services you want to use. Consider the example below:

Customized

External Port

TCP

UDP

IP Address

Enable

Application

 

 

 

 

 

Web server

80 to 80

X

X

192.168.1.100

X

FTP server

21 to 21

X

 

192.168.1.101

X

SMTP (outgoing)

25 to 25

X

X

192.168.1.102

X

POP3 (incoming)

110 to 110

X

X

192.168.1.102

X

When you have completed the configuration, click the Apply button.

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Contents Dual-Band Wireless A+G Broadband Router Copyright & Trademarks Table of Contents Introduction Dual-Band Wireless A+G Broadband RouterIP Addresses FeaturesRouter’s Functions Router Setup Overview Dhcp Dynamic Host Configuration Protocol ServersRouter’s Front Panel Getting to Know the Dual-Band Wireless A+G Broadband RouterRouter’s Back Panel Internet Indicators LAN IndicatorsOverview Wired Connection to a PCConnect the Router Wireless Connection to a PC Configure the PCsConfiguring Windows 98 and Millennium PCs Configuring Windows 2000 PCs Configuring Windows XP PCs Setting Up the Dual-Band Wireless a + G Broadband Router Instant Wireless Series Instant Wireless Series Instant Wireless Series Instant Wireless Series Pptp Router’s Web-based Utility How to Access the Web-based UtilitySetup Automatic Configuration DhcpStatic IP Pptp 5GHz, 802.11a 4GHz, 54g/Wireless-G Security System Instant Wireless Series Dhcp Status SnmpHelp Wireless 5GHz, 802.11aAdvanced Tabs Advanced Wireless4GHz, 54g/Wireless-G Internet Filter Port Forwarding Applications External Port TCP Protocol UDP Protocol Click the Delete This Entry button RoutingDdns Need to set a static IP address on a PC Appendix a TroubleshootingCommon Problems and Solutions Want to test my Internet connection For Windows XPTCP UDP Need to set up a server behind my RouterCan’t get the Internet game, server, or application to work Need to upgrade the firmware To start over, I need to set the Router to factory defaultFirmware upgrade failed, and/or the Diag LED is flashing My DSL service’s PPPoE is always disconnectingFrequently Asked Questions How can I block corrupted FTP downloads? What is DMZ Hosting?Does the Router support ICQ send file? What is the Ieee 802.11a standard? What are the advanced features of the Router?What is the Ieee 802.11b standard? What Ieee 802.11a features are supported?What is ISM band? What is roaming?What is Spread Spectrum? What is WEP?How do I reset the Router? Appendix B How to Ping Your ISP’s E-mail & Web AddressesHow do I resolve issues with signal loss? Have excellent signal strength, but I cannot see my networkStep Two Pinging for a Web Address Step One Pinging an IP AddressWEP Encryption Appendix C Configuring Wireless SecurityBackground For Windows 95, 98, and Me Figure D-5 Appendix E GlossaryInstant Wireless Series 100 101 102 103 104 105 106 107 108 109 110 111 LEDs Appendix F SpecificationsEnvironmental Appendix G Warranty Information32ºF to 104ºF 0ºC to 40ºC 4ºF to 158ºF -20ºC to 70ºCCopyright 2003 Linksys, All Rights Reserved Appendix H Contact Information

WRT55AG specifications

The RF-Link Technology WRT55AG is a versatile wireless router designed to cater to the demands of both home and small office environments. As a dual-band device, it operates on both the 2.4 GHz and 5 GHz frequency bands, allowing for enhanced network flexibility and reduced interference. This capability makes it ideal for settings where multiple devices compete for bandwidth, such as homes filled with smart devices and media streaming.

One of the standout features of the WRT55AG is its support for advanced wireless standards, including IEEE 802.11a/b/g/n. This broad compatibility ensures that users can connect various devices, from older laptops and smartphones to the latest smart home gadgets, without issues. The router boasts a maximum theoretical data rate of up to 300 Mbps on the 2.4 GHz band and 450 Mbps on the 5 GHz band, providing ample speed for high-definition video streaming, online gaming, and large file transfers.

Security is a top priority for the WRT55AG, which incorporates WPA2 encryption and can easily configure firewall settings to protect user data from external threats. The router also features a robust Quality of Service (QoS) management tool that enables users to prioritize bandwidth for specific applications or devices. This ensures that crucial tasks, such as video conferencing or online gaming, receive the necessary resources to function optimally.

In terms of connectivity, the WRT55AG is equipped with four Gigabit Ethernet ports, allowing for wired connections to gaming consoles, PCs, and other network devices. This feature is particularly beneficial for users who require stable connections with minimal latency. The router also supports USB connectivity, enabling file sharing and media streaming directly from USB storage devices connected to the router.

The RF-Link Technology WRT55AG also incorporates user-friendly setup options, including an intuitive web interface for quick configuration. With support for both IPv4 and IPv6 protocols, this router is future-proof, ensuring that it remains relevant as Internet standards evolve.

Overall, the RF-Link WRT55AG stands out as a reliable and feature-rich router that meets the needs of modern households and small offices. Its combination of speed, security, and versatility makes it a solid choice for users looking to enhance their wireless networking experience.
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