Excluding Beacon frames

Beacon frames can get in the way when working with a raw 802.11 trace. The sheer number of frames obscures patterns in the data. Therefore, it's common to exclude those frames from display. Frame type information is carried in the Frame Control field of the 802.11 header. Beacon frames are identified by a Type code of 0 for Management frames, with a subtype of 8 for Beacon. The filter matching the Type code is wlan.fc.type==0, and the filter matching the Subtype code is wlan.fc.subtype==8. Therefore, to discard frames that match both these conditions, one possible filter is !(wlan.fc.type==0 and wlan.fc.subtype==8).

Was this article helpful?

0 0
DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

Get My Free Ebook


Post a comment