How to Use A Router as a Wireless Adapter

ddwrt-image1There may come a time where you have an extra wireless router on your hands (such as the Linksys WRT54GL) that you’re not sure what to do with.  One thing that I have recently found useful is to use the router as a wireless adapter to connect to a wireless network.

Using a router as a wireless adapter will not only provide you with wireless connectivity, but will also give you a multiple-port switch to connect your wired devices.  This is a great way to allow multiple devices to have network connectivity without needing a wireless network card for each device.

  1. Start by checking if you router supports a 3rd party firmware.  (For this guide, I will be using the free DD-WRT firmware).
  2. Download and install the firmware according to the instructions for your router model.
  3. Enter http://192.168.1.1 into your browser and login using the default credentials, which is typically a blank username and the password admin.
  4. Click Wireless.
  5. Change Wireless Mode to Client.
  6. In Wireless Network Name (SSID), enter the name of the wireless network you would like the router to connect to.
  7. Click Apply Settings.
  8. Click Wireless Security (If the wireless network you are connecting to doesn’t have security enabled, you can skip this step.)
  9. Select the corresponding Security Mode and enter the network key and click Apply Settings.
  10. In the top right corner of the web interface, your router should now get a WAN IP that is provided by the wireless network.
  11. Click Setup and then select Basic Setup.
  12. Change the Local IP Address of your router to something other than the default, such as 192.168.5.1.  This is done to prevent conflicts with your existing network.
  13. Enter the Gateway of your wireless network.  (You can find your Gateway information under Default Gateway by entering ipconfig in the command prompt on a computer already connected to your wireless network.
  14. Optional: Click Setup and select Basic Setup.  Under WAN Port, check the box to Assign WAN Port to Switch.  This will add the WAN port to the 4 port switch, giving you 5 ports to share the wireless connection.

Once the above steps have been completed, your router with DD-WRT firmware will be connected to your wireless network as a client just as if you connected to the same wireless network with a laptop.  Any devices that are connected to the 4/5 port switch will now have network connectivity as well.

How to Rebroadcast a Weak Wifi Signal

routerThere may be a time when you have access to a wireless network in one part of your house, but just can’t get it anywhere else.  This isn’t a big deal if you own the network (you can buy another access point or wireless repeater), but if you don’t own the network, this guide will show you how to extend your free coverage.

What’s the purpose of this, you might ask?  In my case, I can connect to several wireless networks in my bedroom where my PC is located.  Unfortunately, I can’t access those networks in my living room where my Xbox 360 is located.  The technique presented in this guide allowed me to use my PC to pick up a wireless signal, share it with my PC’s Ethernet connection, and then rebroadcast it with a router.

What You’ll Need:

  • A working wireless connection
  • A computer running Windows XP, Vista, or 7 with an unused Ethernet port
  • A configured wireless router set to DHCP mode (I’ll be using a WRT54GL with Tomato firmware, but anything will work).  Every router is different, so make sure you configure your router’s settings (SSID, security, etc) before you begin this guide.
  • An Ethernet cable

Windows XP

  1. Connect your wireless router to your PC’s unused Ethernet port with an Ethernet cable.  Make sure to connect the cable to the source or internet port on your router, not one of the numbered outputs.
    router_back
  2. Power the wireless router.
  3. In Windows, right click the Network icon in the system tray and select Open Network Connections.
    rebroadcast_wifi_networkconnXP
  4. Right click your wireless connection and select Properties.
  5. Click the Advanced tab and select “Allow other network users to connect through this computer’s Internet connection”.  This will allow your computer’s Ethernet port to access your wireless internet connection.  Click OK.
    rebroadcast_wifi_enablesharingXP

    1. If you don’t see an option for sharing your connection, verify that you have a second connection enabled on your computer.
  6. You now need to give your Ethernet connection a static IP address.  In the Network Connections window again, right click your Local Area Connection and select Properties.
  7. Select Internet Protocol (TCP/IP) and click the Properties button.
    rebroadcast_wifi_tcpipXP
  8. Select Use the following IP address: and provide an address.  I arbitrarily used 192.168.137.1.  Set ‘Subnet Mask:’ to 255.255.255.0.  Leave the DNS settings blank and click OK.
    rebroadcast_wifi_ipsettings
  9. Your rebroadcasted wireless network will now be up and running!

Windows Vista

  1. Connect your wireless router to your PC’s unused Ethernet port with an Ethernet cable.  Make sure to connect the cable to the source or internet port on your router, not one of the numbered outputs.
    router_back
  2. Power the wireless router.
  3. In Windows, right click the Network icon in the system tray and select Network and Sharing Center.
    network_rebroadcast_sharingcenterVista
  4. Click Manage network connections on the left side of the window.
    network_rebroadcast_managenetworksVista
  5. Right click your wireless connection and select Properties.
  6. Click the Sharing tab and select “Allow other network users to connect through this computer’s Internet connection”.  This will allow your computer’s Ethernet port to access your wireless internet connection.  Click OK.
    network_rebroadcast_allowsharingVista

    1. If you don’t see an option for sharing your connection, verify that you have a second connection enabled on your computer.
  7. You now need to give your Ethernet connection a static IP address.  In the Network Connections window again, right click your Local Area Connection and select Properties.
  8. Select Internet Protocol Version 4 (TCP/IPv4) and click the Properties button.
    network_rebroadcast_wifi_staticipwin7
  9. Select Use the following IP address: and provide an address.  I arbitrarily used 192.168.137.1.  Set ‘Subnet Mask:’ to 255.255.255.0.  Leave the DNS settings blank and click OK.
    network_rebroadcast_wifi_ipsettingswin7
  10. Your rebroadcasted wireless network will now be up and running!

Windows 7

  1. Connect your wireless router to your PC’s unused Ethernet port with an Ethernet cable.  Make sure to connect the cable to the source or internet port on your router, not one of the numbered outputs.
    router_back
  2. Power the wireless router.
  3. In Windows, click the Network icon in the system tray and select Open Network and Sharing Center.
    network_rebroadcast_wifi_opennetworkswin7
  4. Click Change adapter settings on the left side of the screen.
    network_rebroadcast_wifi_changesettingswin7
  5. Right click your wireless connection and select Properties.
  6. Click the Sharing tab and select “Allow other network users to connect through this computer’s Internet connection”.  This will allow your computer’s Ethernet port to access your wireless internet connection.  Click OK.
    network_rebroadcast_wifi_enablesharingwin7

    1. If you don’t see an option for sharing your connection, verify that you have a second connection enabled on your computer.
  7. You now need to give your Ethernet connection a static IP address.  In the Network Connections window again, right click your Local Area Connection and select Properties.
  8. Select Internet Protocol Version 4 (TCP/IPv4) and click the Properties button.
    network_rebroadcast_wifi_staticipwin7
  9. Select Use the following IP address: and provide an address.  I arbitrarily used 192.168.137.1.  Set ‘Subnet Mask:’ to 255.255.255.0.  Leave the DNS settings blank and click OK.
    network_rebroadcast_wifi_ipsettingswin7
  10. Your rebroadcasted wireless network will now be up and running!

While rebroadcasting a weak signal does give you better access to a wireless network, it does have some inherent disadvantages.  Port forwarding will now be twice as complex, and there will most likely be a high amount of network latency induced.  That being said, I didn’t personally notice much of a difference browsing the internet on my laptop or using Xbox Live.

Have any other ideas for accessing wifi on the cheap?  Let us know in the comments.

How To: Use Your iPhone/iPod Touch as a Wireless Flash Drive

airsharingOne of the most useful applications I’ve used for the iPhone/iPod Touch is Airsharing ($4.99, app store), which allows you to use your device as a wireless flash drive.  Not only can it store (and view!) files wirelessly, it also works on Windows, Mac, Linux and even through a web browser.  If that wasn’t enough – Airsharing also includes helpful instructions on how to setup and connect to your device for your specific operating system.

Airsharing Initial ScreenThe initial screen in Airsharing displays a list of files and folders on the device, as well as the IP address of your device which can be used to view and upload files through your web browser.  Airsharing is capable of viewing many different types of files, including Word, Excel, Powerpoint, PDFs, and images which is extremely useful for viewing files on the go.

To protect your data, Airsharing comes equipped with security options such as password protection as well as sleeping after a period of inactivity.  Airsharing also offers the option of keeping your device password-free, which is convenient if you’re using it exclusively on a secure private network.

Connecting to your device via a web browser is as easy as entering the provided IP address into your location bar, but for a more permanent connection method you can use the included instructions (accessible via the ? button) to mount the device as a network drive.  I found this very to be very practical when transferring multiple files because the browser-based uairsharing31ploader only allows one file transfer at a time.

Do you have any suggestions for expanding the storage uses of your iPhone/iPod Touch?  Share them in the comments!