| AirPcap Tx is the first open, affordable, and easy-to-deploy WLAN
(802.11b/g) packet capture and transmission solution for the Windows
platform.
AirPcap Tx retains all of the functionality of AirPcap Classic and,
additionally, supports packet injection. AirPcap Tx, like AirPcap
Classic, enables troubleshooting tools like Wireshark to provide information about wireless protocols and radio signals.
AirPcap Tx gives you the power to capture and analyze low-level
802.11b/g wireless traffic, including control, management, and data
frames on your Windows workstation or laptop. Per packet information is
also available, such as signal strength, CPU-based timestamps (in
microseconds), and receive rate. It also lets you send any of these
frame types over the air.
Transmit Raw 802.11 Frames on Your Network.
AirPcap Tx (and AirPcap Ex/Airpcap Nx) has the ability to inject raw
802.11 frames into your wireless network which makes them an invaluable
aid in assessing the security of your wireless network. AirPcap Tx (and
AirPcap Ex/AirPcap Nx) can inject any kind of frame, including control,
management, and data frames. These frames can be transmitted at any
allowable rate depending upon your adapter.
An application, called AirPcapReplay, is
included in the AirPcap Software Distribution. The purpose of this
application, as the name suggests, is to replay 802.11 network traffic
that is contained in a trace file. In addition to the replay feature,
AirPcapReplay also allows the user to edit individual packets using a
built-in hex editor.
In addition to AirPcap Replay, there are several third-party freeware
and open-source tools that are compatible with AirPcap Tx and AirPcap
Ex. These tools are typcially for advanced users who are interested in
securing and/or auditing their wireless networks. One of these,
Aircrack-ng, is a well-known suite of tools for auditing wireless
networks. It allows various types of penetration tests on a wireless
network: http://www.aircrack-ng.org
Unlike passive reception, there are restrictions on the transmission
frequencies/channels imposed by various countries. While there are no
channel restrictions for monitoring 802.11 traffic, AirPcap Tx (and
AirPcap Ex) will allow transmission on only those channels that are
permitted according to the ship-to country. |
