OmniPeek is used in crawling 802.11 software package wireless, it requires the use of 802.11 wireless packet capture and network card installed can capture the network card driver . With WireShark compared , it can catch all the packets in the air, not just messages to communicate with the network card.
Open the software , the card selection, channel conditions can be performed to grasp the filter bag a. Need to note that for encrypted network packets, we can only crawl to the 802.11 Encrypted Data packet , unable to see the MAC layer data content bearer.
Wireless products, such as Bluetooth, zigbee development process, because there is no direct connection, usually should be used in the development of a dongle for grabbing air data packets, and then analyze the positioning network, communications problems.
Wi-Fi also requires the development of air capture, but capture for Wi-Fi equipment is not called dongle, commonly called sniffer.
We know that, regardless of wired Ethernet or Wi-Fi the Wi , in normal operating mode, mac layer processing broadcast packets or only send their packet destination address and its own mac address does not match the data packet will be discarded.
sniffer is actually a Wi-Fi chip set to promiscuous mode, this mode Wi-Fi chip will receive all the data are transmitted to the upper layer, this upper layer application software for data capture can be analyzed.
To achieve Wi-Fi air capture, we need to meet the following conditions:
1: a computer
2: a card into the promiscuous mode support
3: a data analysis software
1, Omnipeek Overview
If you are using a pure Linux system or Apple mac computer, you can usually use wireshark directly, to capture wireless packets through the computer's own network card, Linux and mac are generally supportive of the card into the promiscuous mode. But if you are like me, the windows system, then you have to slowly read the following article. NIC under Windows did not seem to enter a promiscuous mode so to speak? So we need to use an external USB card called sniffer card omnipeek and the corresponding software and support sniffer drive.
Omnipeek is a powerful network packet scanning software, which not only can scan the message information in a wired network, you can also monitor and scan for the wireless card. With this software, we can more clearly and more quickly locate wireless network problems, adjust parameter information based on their wireless devices scan results. Sniffer and other tools, like Omnipeek can be analyzed and stored for each message received and sent his own card, also for a number of packets, the results of various filter rules allow us to more clearly understand the current problems existing in the network . Meanwhile Omnipeek for wireless network card can be monitored by analyzing the radio message, to understand the operational status of the wireless network, so that users can know the frequency band used by wireless network signal strength, SSID and other information.
Currently using more version Omnipeek_enterprise_11, support for Windows 64bit operating system.
2, capture card
Omnipeek does not support all wireless LAN, wireless network card can https://mypeek.wildpackets.com/driver_downloads.php query, but you need to install special drivers can get caught.
(Subsequent re-update)