4.3.3 USING WIRELESS ANALYZERS FOR INVESTIGATION
WLAN and spectrum analyzers play important role during vulnerability assessment, from start to finish. A combination gives a tool that offers both performance and security monitoring functions for wireless LANs. Whereas WLAN analyzers help capture packet on the air to display important information such as the list of access points and stations, per-node and per-channel statistics, signal strength, a list of packets and network connections, protocol distribution charts, etc, spectrum analyzers dig into non transmissions – for example, RF interference coming from microwave oven. Portable laptop or handheld-based) analyzers are useful while penetration tests are in progress as they provide a mobile platform for device discovery, traffic capture, and other eye-raising wireless activity. Remote analyzers - WIPS sensor or AP-based - can help to further investigate potential vulnerabilities at the end of tests. Portable analyzers are efficient for onsite investigation, while remote analyzers are more cost-effective for offsite investigation.
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