1. i need to set a static ip address on a pc.
the router, by default, assigns an ip address range of 192.168.1.100 to 192.168.1.150 using the dhcp server on the router. to set a static ip address, you can only use the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254. each pc or network device that uses tcp/ip must have a unique address to identify itself in a network. if the ip address is not unique to a network, windows will generate an ip conflict error message. you can assign a static ip address to a pc by performing the following steps:
for windows 95, 98, and me:
a. click start, settings, and control panel. double-click network.
b. in the following network components are installed box, select the tcp/ip-] associated with your ethernet adapter. if you only have one ethernet adapter installed, you will only see one tcp/ip line with no association to an ethernet adapter. highlight it and click the properties button.
c. in the tcp/ip properties window, select the ip address tab, and select specify an ip address. enter a unique ip address that is not used by any other computer on the network connected to the router. you can only use an ip address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254. make sure that each ip address is unique for each pc or network device.
d. click the gateway tab, and in the new gateway prompt, enter 192.168.1.1, which is the default ip address of the router. click the add button to accept the entry.
e. click the dns tab, and make sure the dns enabled option is selected.
enter the host and domain names (e.g., john for host and home for domain). enter the dns entry provided by your isp. if your isp has not provided the dns ip address, contact your isp to get that information or go to its website for the information.
f. click the ok button in the tcp/ip properties window, and click close or the ok button for the network window.
g. restart the computer when asked.
for windows 2000:
a. click start, settings, and control panel. double-click network and dial-up connections.
b. right-click the local area connection that is associated with the ethernet adapter you are using, and select the properties option.
c. in the components checked are used by this connection box, highlight internet protocol (tcp/ip), and click the properties button. select use the following ip address option.
d. enter a unique ip address that is not used by any other computer on the network connected to the router. you can only use an ip address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254.
e. enter the subnet mask, 255.255.255.0.
f. enter the default gateway, 192.168.1.1 (router's default ip address).
g. toward the bottom of the window, select use the following dns server addresses, and enter the preferred dns server and alternative dns server (provided by your isp). contact your isp or go on its website to find the information.
h. click the ok button in the internet protocol (tcp/ip) properties window, and click the ok button in the local area connection properties window.
i. restart the computer if asked.
for windows xp:
the following instructions assume you are running windows xp with the default interface. if you are using the classic interface (where the icons and menus look like previous windows versions), please follow the instructions for windows 2000.
a. click start and control panel.
b. click the network and internet connections icon and then the network connections icon.
c. right-click the local area connection that is associated with the ethernet adapter you are using, and select the properties option.
d. in the this connection uses the following items box, highlight internet protocol (tcp/ip). click the properties button.
e. select the use the following ip address radio button. enter a unique ip address that is not used by any other computer on the network connected to the router. you can only use an ip address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254.
f. enter the subnet mask, 255.255.255.0.
g. enter the default gateway, 192.168.1.1 (router's default ip address).
h. toward the bottom of the window, select use the following dns server addresses, and enter the preferred dns server and alternative dns server (provided by your isp). contact your isp or go on its website to find the information.
i. click the ok button in the internet protocol (tcp/ip) properties window.
click the ok button in the local area connection properties window.
2. i want to test my internet connection.
a. check your tcp/ip settings.
for windows 95, 98, and me:
refer to "appendix f: installing the tcp/ip protocol" and "chapter 5: configuring your network" for details. make sure obtain ip address automatically is selected in the settings.
for windows 2000:
. click start, settings, and control panel. double-click network and dial-up connections.
. right-click the local area connection that is associated with the ethernet adapter you are using, and select the properties option.
. in the components checked are used by this connection box, highlight internet protocol (tcp/ip), and click the properties button. make sure that obtain an ip address automatically and obtain dns server address automatically are selected.
. click the ok button in the internet protocol (tcp/ip) properties window, and click the ok button in the local area connection properties window.
. restart the computer if asked.
for windows xp:
the following instructions assume you are running windows xp with the default interface. if you are using the classic interface (where the icons and menus look like previous windows versions), please follow the instructions for windows 2000.
. click start and control panel.
. click the network and internet connections icon and then the
network connections icon.. right-click the local area connection that is associated with the ethernet adapter you are using, and select the properties option.
. in the this connection uses the following items box, highlight internet protocol (tcp/ip), and click the properties button. make sure that obtain an ip address automatically and obtain dns server address automatically are selected.
. click the ok button in the internet protocol (tcp/ip) properties window, and click the ok button in the local area connection properties window.
. restart the computer if asked.
for windows nt 4.0:
. click start, settings, and control panel. double-click the network icon.
. click the protocol tab, and double-click on tcp/ip protocol.
. when the window appears, make sure you have selected the correct adapter for your ethernet adapter and set it for obtain an ip address from a dhcp server.
. click the ok button in the tcp/ip protocol properties window, and click the close button in the network window.
. restart the computer if asked.
b. open a command prompt.
. for windows 95, 98, and me, please click start and run. in the open field, type in command. press the enter key or click the ok button.
. for windows nt, 2000, and xp, please click start and run. in the open field, type cmd. press the enter key or click the ok button.
c. in the command prompt, type ping 192.168.1.1 and press the enter key.
. if you get a reply, the computer is communicating with the router.
. if you do not get a reply, please check the cable, and make sure obtain an ip address automatically is selected in the tcp/ip settings for your ethernet adapter.
d. in the command prompt, type ping followed by your wan ip address and press the enter key. the wan ip address can be found in the web interface of the router. for example, if your wan ip address is 1.2.3.4, you would enter ping 1.2.3.4 and press the enter key.
. if you get a reply, the computer is connected to the router.
. if you do not get a reply, try the ping command from a different computer to verify that your original computer is not the cause of the problem.
e. in the command prompt, type ping www.yahoo.com and press the enter key.
. if you get a reply, the computer is connected to the internet. if you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.
. if you do not get a reply, there may be a problem with the connection.
try the ping command from a different computer to verify that your original computer is not the cause of the problem.
3. i am not getting an ip address on the wan with my internet connection.
a. refer to "problem #2, i want to test my internet connection" to verify that you have connectivity.
b. if you need to register the mac address of your ethernet adapter with your isp, please see "appendix g: finding the mac address and ip address for your ethernet adapter." if you need to clone the mac address of your ethernet adapter onto the router, see the mac address clone section of "chapter 6: the cable/dsl vpn router's web-based utility" for details.
c. make sure you are using the right wan settings. contact your isp to see if your wan connection type is dhcp, static ip address, or pppoe (commonly used by dsl consumers). please refer to the setup section of "chapter 6: the cable/dsl vpn router's web-based utility" for details on wan settings.
d. make sure you have the right cable. check to see if the wan column has a solidly lit link led.
e. make sure the cable connecting from your cable or dsl modem is connected to the router's wan port. verify that the status page of the router's web interface 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 router's web interface setup page.
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 g: 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, and go to the advanced =] filter tab. make sure you have ipsec pass-through and/or 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 incompatibility 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 of the web interface. if you assigned a static ip address to any computer or network 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. for example, port 80 (http) is used for web; port 21 (ftp) is used for ftp, and port 25 (smtp outgoing) and port 110 (pop3 incoming) are used for the mail server. you can get more information by viewing the documentation 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 =] forwarding tab.
b. enter any name you want to use for the customized application.
c. enter the ext. 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 g: 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:
when you have completed the configuration, click the apply button and then the continue button.
7. i need to set up online game hosting or use other internet applications.
if you want to play online games or use internet applications, most will work without doing any port forwarding or dmz hosting. there may be cases when you want to host an online game or internet application. this would require you to set up the router to deliver incoming packets or data to a specific computer. this also applies to the internet applications you are using. the best way to get the information on what port services to use is to go to the website of the online game or application you want to use. follow these steps to set up online game hosting or use a certain internet application:
a. access the router's web interface by going to http://192.168.1.1 or the ip address of the router. go to the advanced =] forwarding tab.
b. enter any name you want to use for the customized application.
c. enter the ext. port range of the service you are using. for example, if you want to host unreal tournament (ut), you would enter the range 7777 to 27900.
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 g: 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:
when you have completed the configuration, click the apply button and then the continue button.
8. i can't get the internet game, server, or application to work.
if you are having difficulties getting any internet game, server, or application to function properly, consider exposing one pc to the internet using demilitarized zone (dmz) hosting. this option is available when an application requires too many ports or when you are not sure which port services to use. make sure you disable all the forwarding entries if you want to successfully use dmz hosting, since forwarding has priority over dmz hosting. (in other words, data that enters the router will be checked first by the forwarding settings. if the port number that the data enters from does not have port forwarding, then the router will send the data to whichever pc or network device you set for dmz hosting.) follow these steps to set dmz hosting:
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 =] forwarding tab.
b. disable or remove the entries you have entered for forwarding. keep this information in case you want to use it at a later time.
c. click the dmz host tab.
d. enter the ethernet adapter's ip address of the computer you want exposed to the internet. this will bypass the nat firewall for that computer. please refer to "appendix g: finding the mac address and ip address for your ethernet adapter" for details on getting an ip address.
once completed with the configuration, click the apply button and then the continue button.
9. i forgot my password, or the password prompt always appears when saving settings to the router.
reset the router to factory default by pressing the reset button for 30 seconds and then releasing it. if you are still getting prompted for a password when saving settings, then perform the following steps:
a. access the router's web interface by going to http://192.168.1.1 or the ip address of the router. enter the default password admin, and click the password tab.
b. enter a different password in the router password field, and enter the same password in the second field to confirm the password.
c. click the apply and continue buttons.
10. i am a pppoe user, and i need to remove the proxy settings or the dial-up popup window.
if you have proxy settings, you need to disable these on your computer.
because the router is the gateway for the internet connection, the computer does not need any proxy settings to gain access. please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the lan.
for microsoft internet explorer 5.0 or higher:
a. click start, settings, and control panel. double-click internet options.
b. click the connections tab.
c. click the lan settings button and remove anything that is checked.
d. click the ok button to go back to the previous screen.
e. click the option never dial a connection. this will remove any dial-up pop-ups for pppoe users.
for netscape 4.7 or higher:
a. start netscape navigator, and click edit, preferences, advanced, and proxies.
b. make sure you have direct connection to the internet selected on this screen.
c. close all the windows to finish.
11. to start over, i need to set the router to factory default.
hold the reset button for up to 30 seconds and then release it. this will return the password, forwarding, and other settings on the router to the factory default settings. in other words, the router will revert to its original factory configuration.
12. i need to upgrade the firmware.
in order to upgrade the firmware with the latest features, you need to go to the linksys website and download the latest firmware at www.linksys.com. follow these steps:
a. go to the linksys website at http://www.linksys.com and download the latest firmware.
b. to upgrade the firmware, follow the steps in the help section found in "chapter 6: the cable/dsl vpn router's web-based utility."
13. the firmware upgrade failed, and/or the diag led is flashing.
the upgrade could have failed for a number of reasons. follow these steps to upgrade the firmware and/or make the diag led stop flashing:
a. if the firmware upgrade failed, use the tftp program (it was downloaded along with the firmware). open the pdf that was downloaded along with the firmware and tftp program, and follow the pdf's instructions.
b. set a static ip address on the pc; refer to "problem #1, i need to set a static ip address." use the following ip address settings for the computer you are using:
ip address: 192.168.1.50
subnet mask: 255.255.255.0
gateway: 192.168.1.1
c. perform the upgrade using the tftp program or the router's web-based utility through its help tab.
14. my dsl service's pppoe is always disconnecting.
pppoe is not actually a dedicated or always-on connection. the dsl isp can disconnect the service after a period of inactivity, just like a normal phone dialup connection to the internet. there is a setup option to "keep alive" the connection. this may not always work, so you may need to re-establish connection periodically.
a. to connect to the router, go to the web browser, and enter http://192.168.1.1 or the ip address of the router.
b. enter the password, if asked. (the default password is admin.)
c. in the setup tab, select the option keep alive, and set the redial period option at 20 (seconds).
d. click the apply and continue buttons.
e. click the status tab, and click the connect button.
f. you may see the login status display as connecting. press the f5 key to refresh the screen, until you see the login status display as connected.
g. click the apply and continue buttons to continue.
if the connection is lost again, follow steps e to g to re-establish connection.
15. i can't access my email, web, or vpn, or i am getting corrupted data from the internet.
the maximum transmission unit (mtu) setting may need to be adjusted. by default, the mtu is set at 1500. for most dsl users, it is strongly recommended to use mtu 1492. if you are having some difficulties, perform the following steps:
a. to connect to the router, go to the web browser, and enter http://192.168.1.1 or the ip address of the router.
b. enter the password, if asked. (the default password is admin.)
c. click the advanced =] filter tab.
d. look for the mtu option, and select enable. in the size field, enter 1492.
e. click the apply and continue buttons to continue.
if your difficulties continue, change the size to different values. try this list of values, one value at a time, in this order, until your problem is solved:
1462
1400
1362
1300
16. i need to use port triggering.
port triggering looks at the outgoing port services used and will trigger the router to open a specific port, depending on which port an internet application uses. follow these steps:
a. to connect to the router, go to the web browser, and enter http://192.168.1.1 or the ip address of the router.
b. enter the password, if asked. (the default password is admin.)
c. click theadvanced =] forwarding tab, and click the port trigger button.
d. enter any name you want to use for the application name.
e. enter the triggered port range. check with your internet application provider for more information on which outgoing port services it is using.
f. enter the incoming port range. check with your internet application provider for more information on which incoming port services are required by the internet application.
17. the diag led stays lit continuously.
. the diag led lights up when the device is first powered up. meantime, the system will boot up itself and check for proper operation. after finishing the checking procedure, the led turns off to show that the system is working fine. if the led remains lit after this time, the device is not working properly. try to flash the firmware by assigning a static ip address to the computer, and then upgrade the firmware. try using the following settings, ip address: 192.168.1.50 and subnet mask: 255.255.255.0.
18. when i enter a url or ip address, i get a time-out error or am prompted to retry.
. check if other pcs work. if they do, ensure that your workstation's ip settings are correct (ip address, subnet mask, default gateway, and dns).
restart the computer that is having a problem.
. if the pcs are configured correctly, but still not working, check the router. ensure that it is connected and on. connect to it and check its settings. (if you cannot connect to it, check the lan and power connections.)
. if the router is configured correctly, check your internet connection (dsl/cable modem, etc.) to see if it is working correctly. you can remove the router to verify a direct connection.
. manually configure the tcp/ip with a dns address provided by your isp.
. make sure that your browser is set to connect directly and that any dialup 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.
19. the full/col led keeps flickering continuously.
. check the category 5 ethernet cable and its rj-45 connectors.
. there may be interference with other network devices. try removing other pcs or network devices to see if the problem persists. eliminate each network device one at a time to determine the cause.