Posts Tagged ‘Network Names’

Wireless Network Security: How to Use Kismet

December 13th, 2009



Kismet is a wireless network detector / sniffer which can give you a vast amount of information about wireless networks. Wireless network security flaws are well documented but often very hard for the common person to understand. I will be showing you how to use kismet with out even having to install Linux, or compile kismet.

First you need to proceed to remote-exploit.org and download and burn their Auditor CD. (IF you don’t know how to burn an ISO image, go to Google). This version of Linux doesn’t install or modify your hard drive; it will boot from the CD and use a Ram Drive (On your Memory).

Auditor is not only a great tool for testing wireless network security with kismet but it also has many other computer security tools on it as well.

Client Window

Next, to start Kismet proceed to the Linux version of the start menu, and press Auditor.
Now proceed to the wireless /scanning/kismet tools/kismet.

Once you click on Kismet it will ask you for a default location to place the Kismet log files for analyzing later, just press the desktop or temp file.

Now I will show you how to use Kismet. When kismet initially opens you will see a greenish box with numbers and network names (If any are near you) clicking away don’t be overwhelmed. (Also I can’t show you how to use kismet if you don’t have the correct wireless adapter, get an ORINICO Gold Classic Card off EBAY.) The Orninco gold classic card will be automaticly detected by auditor linux.

The Kismet columns will show the wireless networks SSID (Name), Type of device (Access point, gateway) Encryption or no Encryption, an IP range and number of packets. Kismet will pick up hidden networks with SSID broadcast Disabled also, Netstumbler will not.

Now Press H, to bring up the Help Menu. This will give the nuts and bolts on how to use kismet. If you tab down to the network you are auditing and press “C”, Kismet will show you all the computers that are using that wireless access point / gateway. This Kismet screen will show you the clients MAC address, Manufacture of Wireless Adapter, IP address range and traffic.

Kismet: Help Menue

Now to get out of that screen press “Q”. Tab Down on the Main Kismet Screen to another SSID and press “I”. This Kismet window will show detailed information about the wireless network. The Kismet detail screen will show the type of network (Infrastructrure / Adhoc), signal strength, channel, encryption type, and much more.

Kismet will also give you sound alerts when new wireless networks are discovered or security alerts or suspicious clients are in range. Suspicious clients would be people like you who are using Kismet or Networkstumbler. Unlike you these could be Wardrivers looking for venerable networks to hack into.

Kismet Alert Page

You can prevent War drivers from discovering your wireless network by performing a proper site survey which will help limit signal bleed off to unneeded areas. You should write down the suspicious MAC address and keep an eye on your access logs. If the War Drivers are really stupid just look out your window and look for cars with weird antennas.HA HA HA.

Kismet is more than just a tool to discover wireless networks; it can be used in conjunction with other tools to crack WEP/WPA. Many websites will claim that WEP can be cracked in less that five minutes. This is only half the truth because it could take many hours,days,months to gather enough packets to crack. Good luck and have fun learning the more advanced applications of kismet.

By: Eric Meyer

Wireless Network Installation and Configuration

October 19th, 2009



You might just be at that point, where the small, wired home network you created a few months ago just is not doing it for you anymore and you want to extend it with a wireless network. Of course, you might as well be at that point, where you want to build a completely new network. Whichever the reason may be, the problem is the same – you need to know exactly how to do a wireless network installation.

Most of the time, you will find it necessary to install a wireless router. Now, you will only need to install one of these if you either are building your first home network or simply want to keep the wireless network installation at the simplest level as possible. Remember to install the router in a somewhat central location in your home so this way all receivers will be almost in the same line of sight. You see, with wireless internet, the speed depends on the distance from the router to the receiver. All you have to do now is connect your router to a power source, and of course an Internet source. Nowadays many routers support broadband modems and even dial-up connections. Still, when you buy a router make sure that it has an RS-232 serial port if you need the dial-up connection, because otherwise you will find yourself having a useless router. Last, but not least, you can also connect a wired router (called a switch or a hub) because wireless routers generally do contain built-in access points.

Now choose the name of your network. Often with Wi-Fi the network names are generically called SSID. Of course, this SSID has to be identical with all computers that are sharing the same wireless router. For your own protection, it is recommended that no matter what name your router manufacturer set to change it to something else. In order to find a network name for your router all you have to do is consult the product documentation. Finally, read the documentation to find out how to handle WEP security and also how to turn on firewall features and how to set other options.

Wireless Access Points

One wireless type network connection is supported by only one access point. It is very important to remember this further on. It is recommended to use this type of access point only if you indeed need the features that only a wireless router can provide and also you want to have more than three or four computers around the house that will be connected to the internet. You can read more at http://www.howtosetupwirelessnetwork.com

The positioning rule is the same as with wireless routers – access points have to be placed in a central location so that all receivers will be in the same line of sight. Plug in the power cord and if necessary the dial-up internet connection as well. Now cable the access points to your hub or switch. In this case, you will not have to configure any firewalls at all, yet you will still have to set a network name and enable the WEP function.

Giving these two options of installing a wireless network in your house, from this point on, all you have to do is install them in your own operating system and you’re good to go.

By: Dean Forster