How To Connect DSL ISP modem with Wireless Router - Connect UT300R2U with Linksys WRT54G

Connecting your wired ISP router to a wireless router has become a typical setup now a days in most homes.Now a days almost everybody has a laptop or a wifi enabled mobile phone and everybody needs a wireless network at home.So this tutorial should help you setup your isp provided wired router with a seperate wireless router you purchased.Now this isp , could be any ADSL ISP like bsnl,mtnl,airtel etc. And wireless routers could be linksys,netgear,dlink etc . So even if you have another router, the basic idea can be taken from here.THere are plenty of ways to configure two routers together, this is just one of the methods.Special thanks to Dinakar who has been actively involved in creating this tutorial and providing the screenshots.So here's how you do it :

Configuring the UT300R2U - The ISP provided wired router

As i said earlier, there are various ways to configure two routers together.In this setup, we shall configure the UT300R2U in PPoE mode.

Step 1 : Connect a LAN cable from the LAN port of the modem To the LAN port of your computer. Forget about the wireless router for the time being.So for this FOLLOW THIS TUTORIAL to configure PPoE mode in UT300R2U .
Step 2 : Now FOLLOW THIS TUTORIAL to ensure that DHCP server is enabled . Set the DHCP range from 192.168.1.3 to 192.168.1.20 ( this is more than enough for approximately 15 pcs ) . If you have more than 15 pcs then set the dhcp range from 192.168.1.3 to 192.168.1.50

Configuring the Linksys WRT54G - The wireless router you have

Now this wirless router will behave like a wireless hub in this setup.The modem ( UT300R2U ) does the dialing work and the gives the ip addresses as DHCP is by default switched on in UT300R2U.So follow these steps in order

Step 1 : Now You need to change the wiring.Remove the LAN cable from modem to the pc.Now Connect a LAN cable from the LAN port of the wireless router ( Linksys WRT54G ) to the LAN port of your computer. NOTE : In a typical 4 port wireless router, you would find 1 INTERNET port and 4 LAN ports.If you carefully observe you would see the INTERNET port a bit seperate from the LAN ports.

Step 2 : Now connect one LAN cable from the LAN port of the wireless router ( Linksys WRT54G ) to the LAN port of your computer.
Step 3 : Now Open a web browser window on the connected computer and type http://192.168.1.1 into the address bar and press enter. A window will pop up prompting you for a username and password to access the configuration page for your router. Enter admin for both the username and password.

Step 4 : You should see the Setup page shown below.
Step 5 : Now Change the internet connection type to "Automatic Configuration - DHCP"

Step 6 : Also Change the Local Ip address From 192.168.1.1 to Say 192.168.1.100 , because UT300R2U has the ip 192.168.1.1 and there shouldnt be an ipconflict
Step 7 : Also ensure that you DISABLE DHCP SERVER in the same Page , as DHCP server is already enabled by default in UT300R2U , so you dont need to have DHCP server enabled for both UT300R2U and Linksys .
Step 8 :(Optional) On this screen you may change the Router Name from its default value to something unique. Also, you may set the time zone. Scroll to the bottom of the page and click Save Settings then click Continue when the Settings are successful dialog is displayed.
Step 9 : Next, click on the Wireless tab at the top of the settings screen. Change the Wireless Network Name (SSID) from the default value to something unique (you can use the same name you set as your Router Name in the previous step).Also ensure that Wireless SSID Broadcast is ENABLED so that you can find your wifi network easily. Click Save Settings and then Continue when the Settings are successful dialog is displayed.

Step 10 : Next click on the sub-tab ‘Wireless Security’ and Change the Default Security mode to WPA and enter a good strong key ( its like a password to access your wifi network).Then Click on Save Settings

FINAL CONNECTIONS

Step 1 : Now You need to change the wiring again.Remove the LAN cable from router to the pc.Now Connect a LAN cable from the LAN port of the modem ( UT300R2U ) to the 1st LAN port(NOT INTERNET PORT) of the wireless router ( Linksys WRT54G ). NOTE : In a typical 4 port wireless router, you would find 1 INTERNET port and 4 LAN ports.If you carefully observe you would see the INTERNET port a bit seperate from the LAN ports.
Step 2 : Connect all other pcs to the other LAN ports of your wifi router if required.

You have now configured Both your wired router ( UT300R2U ) And Your Wifi Router ( Linksys WRT54G ) Successfully.Now Ensure that all settings are saved and reboot both the routers and wait for a few seconds for the linksys to connect and you should have access to the internet.