Wireless Frame Capture; Wireless Frame Capture Overview; Wireless Frame Capture Commands - ZyXEL Communications ZYWALL USG Series Reference Manual

This chapter shows you how to configure and use wireless frame capture on the ZyWALL / USG.

9.1 Wireless Frame Capture Overview

Troubleshooting wireless LAN issues has always been a challenge. Wireless sniffer tools like
Ethereal can help capture and decode packets of information, which can then be analyzed for
debugging. It works well for local data traffic, but if your devices are spaced increasingly farther
away then it often becomes correspondingly difficult to attempt remote debugging. Complicated
wireless packet collection is arguably an arduous and perplexing process. The wireless frame
capture feature in the ZyWALL / USG can help.
This chapter describes the wireless frame capture commands, which allows a network administrator
to capture wireless traffic information and download it to an Ethereal/Tcpdump compatible format
packet file for analysis.

9.2 Wireless Frame Capture Commands

The following table identifies the values required for many of these commands. Other input values
are discussed with the corresponding commands.
Table 25 Input Values for Wireless Frame Capture Commands
LABEL
ip_address
mon_dir_size
file_name
ZyWALL / USG (ZLD) CLI Reference Guide
C

Wireless Frame Capture

DESCRIPTION
The IP address of the Access Point (AP) that you want to monitor. Enter a
standard IPv4 IP address (for example, 192.168.1.2).
The total combined size (in kbytes) of all files to be captured. The maximum
you can set is 50 megabtyes (52428800 bytes.)
The file name prefix for each captured file. The default prefix is monitor while
the default file name is monitor.dump.
You can use 1-31 alphanumeric characters, underscores or dashes but the first
character cannot be a number. This string is case sensitive.
H A PT ER
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