Monitoring wireless traffic
If you place an Ethernet Probe on a switch to which a wireless access point is connected, you will see the legitimate wireless station traffic connected to your wired network. What you will not see is the 802.11 headers crucial to understanding wireless-specific problems and security threats. You will also not be able to see rogue access points, or illegitimate stations trying to associate with access points. In short, to see all RF signals on the air at your site, you need a wireless probe. In fact, you usually need more than one such probe to see all of the access points and stations (legitimate or illicit) deployed on the site.