Figure 7: Wireless Settings Dialog in Wireshark

The parameters that can be configured are:

Channel: the channels are specified in terms of their center frequencies and the range of channels varies from adapter to adapter.

Channel Offset: set to -1, 0, or +1 for AirPcap N. This allows the use of “wide” channels.

Capture Type: 802.11 frames only, or 802.11 frames plus Radio information (Radiotap header), or 802.11 frames plus the Per Packet Information (PPI) header. Radiotap and PPI include information such as, transmit rate, signal power, signal quality, channel, and will be displayed by Wireshark in the radiotap header of every frame.

Include 802.11 FCS in Frames: if checked the captured frames will include the 802.11 4-bytes Frame Check Sequence.

FCS Filter: this drop-down list allows to configure the kind of Frame Check Sequence filtering that the selected adapter will perform:

oAll Frames: the adapter will capture all the frames, regardless of whether the FCS is valid or invalid.

oValid Frames: the adapter will only capture frames that have a valid FCS.

oInvalid Frames: the adapter will only capture frames that have an invalid FCS.

AirPcap User’s Guide

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Cace Technologies AirPcap Wireless Capture Adapters manual Parameters that can be configured are

AirPcap Wireless Capture Adapters specifications

Cace Technologies AirPcap Wireless Capture Adapters are essential tools for network professionals aiming to monitor, analyze, and troubleshoot wireless networks. These innovative devices enable packet capture and analysis over 802.11 wireless networks, providing insights that are crucial for maintaining network integrity and performance.

One of the main features of AirPcap adapters is their ability to capture raw 802.11 packets in real time, including management, control, and data frames. This capability allows for a comprehensive view of wireless communications, assisting engineers in identifying issues like signal interference, unauthorized access points, and potential security breaches.

Another significant characteristic is the support for both 802.11a/b/g/n standards. This wide-ranging compatibility ensures that users can effectively analyze traffic across various network types, regardless of the generation of equipment being utilized. Additionally, AirPcap adapters are equipped with advanced features like packet injection, which is beneficial for testing network robustness and security defenses.

The wireless capture adapters are often praised for their seamless integration with popular analysis tools such as Wireshark. This combination provides users with a powerful interface for performing in-depth packet analysis, enabling the decoding of complex protocols and offering visualizations that aid in understanding network behaviors.

For ease of use, AirPcap adapters come equipped with a compact design and user-friendly software. They can be connected to laptops or portable devices, making them ideal for field use. Their portability ensures that field technicians or network analysts can perform assessments in various environments without the need for extensive setup or configurations.

Security is another critical aspect where AirPcap shines. These adapters allow for the capture of encrypted packets, provided the user has the appropriate decryption keys. This feature is particularly valuable for troubleshooting security protocols and ensuring that data transmitted over the network is secure.

In conclusion, Cace Technologies AirPcap Wireless Capture Adapters are versatile and powerful tools for any network engineer or security professional. With their ability to capture and analyze a wide range of wireless traffic, their compatibility with industry-standard tools, and their advanced features, AirPcap adapters are indispensable in today's increasingly wireless world. Whether used for routine monitoring, troubleshooting, or security assessments, these adapters offer a robust solution for wireless network management.