![]() Launch the Finder application on the MacBook, as shown in the image.ģ. The file is located in the Desktop folder or at the path /var/tmp/ (It may vary on the macOS version the MacBook runs).ġ. This can be done if the OTA PCAP starts before the device is associated with the WLAN or if the client is deauthenticated and reauthenticated while the capture runs. Tip: If the WLAN uses encryption such as Pre-shared Key (PSK), ensure the capture catches the four-way handshake between the AP and the desired client. Wait for some time to collect the information required and click Stop. This action places the Wireless adapter in Monitor Mode and it cannot be used to connect the device to a Wireless LAN (WLAN), as shown in the image. Choose the Channel and Width that the target device and AP use, as shown in the image. Select the Window menu from the Wireless Diagnostic Tool on the menu bar and select Sniffer or use the keyboard shortcut, press at the same time ALT + Command + 6 Keys, as shown in the image. Press and hold the ALT/Option Key from the keyboard and click on the top-right Wi-Fi icon, as shown in the image. ![]() AireOS Web GUI under Wireless > Access Points > 802.11a/n/ac (5GHz) or 802.11 b/g/n (2.4GHz) > Select an AP > Channel and WidthĬonfigure Option A.Cisco IOS®-XE Web Graphical User Interface (GUI) under Configuration > Wireless > 5GHz or 2.4GHz > Select an AP > Channel and Width.Ensure you know which 802.11 Channel and Width, the client device, and the AP use.It is recommended to have the Macbook acting as a Wireless Sniffer close to the AP and target device.If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. ![]() The information in this document was created from the devices in a specific lab environment. Apple MacBook with macOS version 10.14.X or higher.The information in this document is based on these software and hardware versions: Prerequisites RequirementsĬisco recommends that you have knowledge of these topics:Ĭisco Wireless LAN Controllers (WLCs) AireOS or Cisco IOS®-XE ![]() This document describes how to collect Packet Captures (PCAPs) Over the Air (OTA) with the native tool Wireless Diagnostics and third-party applications such as Airtool and Wireshark on a MacBook in order to troubleshoot and analyze wireless behaviors. ![]()
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