This is a quick check to ensure that you have enabled the correct interface. BackTrack ships with all the required drivers for the Alfa card. As soon as the machine booted, the card was recognized and was assigned the network interface wlan0.
By default, all network interfaces in BackTrack are disabled on boot. We enabled the interface using the ifconfig command. Now our Alfa card is up and functional! Now we will look at how to connect to the access point using the Alfa wireless card. Let us first see what wireless networks our Alfa card is currently detecting. Issue the command iwlist wlan0 scanning and you will find a list of networks in your vicinity:.
Keep scrolling down and you should find the Wireless Lab network in this list. In my setup, it is detected as Cell 05 , it may be different in yours. Now, issue the command iwconfig wlan0 essid "Wireless Lab" and then iwconfig wlan0 to check the status. If you have successfully connected to the access point, you should see the MAC address of the access point in the Access Point: field in the output of iwconfig , as shown in the following screenshot:.
We know the access point has a management interface IP address " Alternatively, this is the same as the default router IP address when we run the route —n command. Let's set our IP address in the same subnet by issuing the command ifconfig wlan0 Verify the command succeeded by typing ifconfig wlan0 and checking the output:.
Now let's ping the access point by issuing the command ping If the network connection has been set up properly, then you should see the responses from the access point. You can additionally issue an arp —a to verify that the response is coming from the access point. It is important to note that some of the more recent access points might have response to ICMP Echo Request packets disabled. This is typically done to make the access point secure out-of-the-box with only the bare minimum configuration settings available.
In such a case, you could try to launch a browser and access the web interface to verify that the connection is up and running. On the access point, we can verify the connectivity by looking at the connection logs. As you can see in the following log, the MAC address of the wireless card c0:ca:3a:bd has been logged:. We just connected to our access point successfully from BackTrack using our Alfa wireless card as the wireless device.
We also learnt how to verify that a connection has been established at both the wireless client and the access point side.
Here is a challenging exercise for you—set up the access point in WEP configuration. For each of these, try establishing a connection with the access point using the wireless adapter. Hint: Check the manual for the iwconfig command by typing man iwconfig for how to configure the card to connect to WEP.
After issuing the command ifconfig wlan0 up , how do you verify the wireless card is up and functional? Can we run all our experiments using the BackTrack live CD alone? And not install it to the hard drive? This chapter provided you with detailed instructions on how to set up your own wireless lab. Also, in the process, you have learned the basic steps towards:.
It is important that you gain confidence in configuring the system. If not, it is advisable that you repeat these examples a couple of times.
In later chapters, we will be designing more complicated scenarios. In the next chapter, we will learn about the inherent insecurities in WLANs because of design.
We will be using the network analyzer tool Wireshark to understand these concepts in a practical way. Vivek Ramachandran has been working on Wi-Fi security since In , he was the first to demonstrate how malware could use Wi-Fi to create backdoors, worms, and even botnets.
Earlier, Vivek was one of the programmers of the He is best known in the hacker community as the founder of SecurityTube. About this book Wireless has become ubiquitous in today's world.
Publication date: September Publisher Packt. Pages After that, you can verify that your "wired" network is up and running by typing 'ifconfig' and look for eth0. This will be your wireless networking showing up as a wired network.
So how do I get it to work with Airmon-ng and the rest of the suite??? So I can scan wireless networks??? If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.
Please note: Do not post advertisements, offensive material, profanity, or personal attacks. Please remember to be considerate of other members. All submitted content is subject to our Terms Of Use. Is that accurate?? I would really appreciate any and all help so I can use my wireless in Backtrack thru VMware VMware v7. Thanks and pls help me ASAP Share Flag. On the Basis of both backtrack use and As a normal wifi card for using wifi. I also used it on kali1 3.
It serves and still serving me very good, those who are willing to buy you can without any discomfort. Raymond is the tp-link adapter compatible with backtrack 5? Also is it compatible with ubuntu Which adaptor would you best recommend? First, I have a small factual correction to make for this article — the RT chipset is made by Ralink, not Realtek.
The unit functions perfectly good with Windows XP,. But there are lots of problems using this under Linux. The Realtek utility software in Windows has a selection box for three power modes. I have searched the net and downloaded the newest drivers with patches that I could find.
I might have to buy another adapter and keep this one around until someone gets the Realtek cu driver situation figured out for the ru chipset. It can be fixed. After all of that you should be good to go. Best of luck to you. Great article! Thanks for all the images, charts, and details. It arrived today. I personally would say that it is a good one but not the best. Unfortunately not. I don;t received replies from AP. Tested many times with almost all BackTrack releases.
So if you would like to monitor, dump, save packets and then crack it, it will be fine. BT 5r3 known this card just plug and play. But injection problem can be solved only maybe with Linux guru. My friend is using it for more than four years very good device. We use this device in university and it catch good signal from over radio access point. He got it from Saudi. Yes its an amazing adapter.
The ones selling on Ebay are expensive according to me.
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