How to extend your Wifi Network using another router(s)

Aim of Tutorial: To extend, Your Existing Wi-Fi network using another Wi-fi (2nd) router.

Consider Following scenario :


1.> Assuming your current setup of you router(1st) as below, Connect one end of another (blue in my case ) cat5 Lan cable to one of the 4 LAN ports.



2.> Take another Router (2nd) and plug in the other end of the CAT5 (blue) cable to one of the 4 Lan Ports on it, and switch it ON.




3.> Browse the Router-Page of 2nd Router. In Network Settings, and DISABLE the DHCP Service as shown.



4.> Now, Connect your Laptop/ Phone to this new wifi network, You have successfully extended your wi-fi network.

5.> Any one of the networks will be connected automatically, depending upon signal strength and reachablity.

6.> NOTE:

(a.) Both WI-FI networks may have different WiFi-network names(SSID). My case (SoftwareKing and SoftwareKing2).

(b.) Both Wi-Fi networks may have diffrent Security type and keys.

How to share Internet from a 3G/ Broadband USB-Modem using AD-HOC networking

Aim of Tutorial: To share Internet connection from a 3G/ Broadband USB type Modem using AD-HOC networking.


Consider the following Scenario:-



1. Plug in the 3G modem to your Desktop/ Laptop, as usual you do for internet access but do not start or dial this connection.




2.> Now Create a Wireless ad-hoc network from Network ans Sharing center by selecting "Setup a new connection or network" as shown below:


3.> Press Next, to setup this ad-hoc network.


4.> Next, Put a desired Network name, you wish to be shown, when users try finding your network on wifi.

5.> Select, Security type as WPA2-Personal and Enter a 8 or more digit, desired Password / key in the field.


6.> As your network sets up, Go to Network and Sharing Center >> Change Adapter settings, to find the USB-Modem's Adapter Icon.

7.> Right Click on it to view its Properties, Select Sharing tab and Tick the "Allow other network users to connect through this computer's internet." option and select Wireless Local Connection from the list.

8.> A message saying," The settings will take place after next time a connection is made" may come, Hit OK to save this.

9.> Now Dial/connect the USB modem on your PC/ Laptop.

10.> You Friends, should now be able to access Internet on their Laptops, connected to your own (My shared Internet) ad-Hoc network after entering the security key, you have setup.

How To Share 3G/Broadband USB Modem Internet via Wi-Fi Router

Aim of the Tutorial: To share Internet connection from a 3G/ Broadband USB type Modem Via a Wi-Fi Router.

When I used to conduct hacking workshops in schools and colleges, This setup was very useful for me, because it allowed me to share my Internet to other Pc's via Wi-fi or Wired Lan and perform Live Hacking demonstrations. Hope you all will find some other use of this Tutorial.


1. Plug in the 3G modem to your Desktop/ Laptop, as usual you do for internet access but do not start or dial this connection.


2. Connect one end of the RJ-45 LAN cable (that comes with any router) to the INTERNET / WAN PORT of the Router as shown.


3. Next, Put another end of the RJ-45 Lan cable to the Ethernet port of the Desktop / Laptop as shown.
4.> Go to Network and Sharing Center >> Change Adapter settings, to find the USB-Modem's Adapter Icon.

5.> Right Click on it to view its Properties, Select Sharing tab and Tick the "Allow other network users to connect through this computer's internet." option.

6.> A message saying," The settings will take place after next time a connection is made" may come, Hit OK to save this.


7. > Now browse the Router Page for configuration (192.168.0.1 in my case), and select Manual internet connection settings.

8.> Select connection type as Dynamic IP(dhcp) and save the settings, allow the router to restart with these settings.

9.> Now Dial/connect the USB modem on your PC/ Laptop.

10.> You should now be able to access Internet on all the computers connected to that Wi-Fi network.