8
Apr

Dial Up Networking in Windows XP via GSM

Category: GSM, Networking, Windows, Wireless |

Suppose you are at your grandma’s village, miles away from your sweet home, noisy cars, technology, Internet and any kind of wireless 802.11 network. Suddenly, you realize that you aren’t sure if you enabled that damned firewall service in your machine. So, what do you do?

Simple, you enable bluetooth on both your mobile phone and laptop and dialup to your machine. After moments, the connection is established and voila, you can even login to your machine via remote desktop !! Here you are, is that firewall enabled? Everything OK and cheap, especially if you have two sim cards from the same provider. Drawback, a bit slow connection (9,6kbps without GPRS, not tested with GPRS yet)

THE FOLLOWING WERE ACCOMPLISHED WITH WINDOWS XP, BOTH THE SERVER AND CLIENT SIDE, Windows 2003 + IVT BlueSoleil = BLUE SCREEN.

DEVICES USED: Motorola L7-imode, P900 and PDAs with Windows Mobile 5, IPAQ 514 NOT WORKING (Dial Up Networking not accessible with factory firmware)

SERVER SIDE

1) Enable bluetooth to both laptop (just insert the Bluetooth USB Dongle to a free USB port) and mobile phone

2) Download the neat program for bluetooth drivers and connection tools, IVT BlueSoleil

(I didn’t succedd setting up the server using the default WinXP bluetooth drivers, they work for client side though)

3) Open BlueSoleil. A pop up at the right down corner of the screen indicates that “Bluetooth started”, otherwise there is a problem with the drivers so check that all OK. If nothing happens, uninstall and reinstall BlueSoleil.

4) “My Bluetooth” -> “Bluetooth Device Discovery”

Your phone should be found, otherwise bluetooth is not enabled on your phone

5) Right click your phone -> “Pair” -> choose a password and put the same on the mobile. Now on BlueSoleil a red tick on mobile phone indicates that pairing is OK.

6) “My Bluetooth” -> “Bluetooth Service Discovery”

7) Double click “Bluetooth Dial-Up Networking Service” (it must have a yellow line around it, otherwise your mobile is not compatible)

8) If you are asked whether to make a permanent port mapping answer YES. So, you see the image1. Notice the dotted green line between the “Sun” (laptop) and L7-imode (it indicated that connection is established) and the red tick on L7-imode left down icon corner.

In case you are on client side, you fill in username/password and telephone number, click Dial and if everything is OK, after a few moments you join your home network. (Leave the other settings at their default values - Just make sure that “Wait for dial tone before dialing” is enabled at modem properties (”Control Panel” -> “Phone and Modem Options” -> “Modems” -> “Bluetooth DUN Modem” (DUN aka Dial Up Networking) -> “Properties” -> “Modem” ).

9) Assure that the mobile phone’s modem ic correctly recognized and ready to accept/make calls.

“Control Panel” -> “Phone and Modem Options” -> “Modems” -> “Bluetooth DUN Modem” -> “Properties” -> “Diagnostics”

You see the following image2

Press “Query Modem”

In BlueSolleil appears again the green line and a popup ” Connecting… Connected (COM XX)” image3 .This popup is critical, it indicates that the mobile’s modem is correctly recognized and communicates well with BlueSoleil

So, query is successful and the following appears image4 . Notice that in the second line the mobile is correctly recognized (there are cases where the modem responds to the query but the exact model is not recognized and the whole attempt finally fails. In that case go back to 6 - 7 - 8 - 9

10) So, lets setup the incoming connection at networks connections

“Start” -> “Settings” -> “Open Network Connections”

Delete any DUN inbound connections. In order to establish an DUN inbound connection using mobile’s modem it is CRITICAL that the connection is created from scratch and there is any previous inbound connection (also inactive ones). So, DELETE any inbound connection. THIS STEP MUST BE MADE EVERY TIME

-> “Create a new connection” -> “Set up an advanced connection” -> “Accept incoming connections” -> at “Devices for incoming connections” choose “Bluetooth DUN Modem” -> “Do not allow virtual private connections” -> at “User permissions” just choose a user or add a new one and assign a password to it (this user is not a common windows user, it is just for the dialup session) -> at “Networking software, select “Properties” on “Internet Protocol (TCP/IP)” and just assign the appropriate settings/ip.

That’s it :) Notice the popup of BlueSoleil indicating “Connected (COM XX)” when you access “Devices for incoming connections”

In BlueSoleil the green dotted line appears and indicates that the server is ready to accept incoming connections :)

It looks like this image3

CLIENT SIDE

Just follow STEPS 1-8

FINALLY, the connection is established and you are connected to your home network. With maximum security of course.

CONGRATULATIONS


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