User's Manual

Network trace configuration 97
Packet trace configuration
Use this section to configure parameters that affect how packet trace functions on the radio
interfaces.
Trace beacons
Enable to trace the 802.11 beacons detected or transmitted by the radio.
Promiscuous trace
Enable to place the radio in promiscuous mode when the trace is active.
In promiscuous mode, the radio receives all traffic on the channel, including traffic that is not
destined to the M220. While the radio is operating in promiscuous mode, it continues serving
associated clients. Packets not destined to the AP are not forwarded.
As soon as the trace is completed, the radio reverts to non-promiscuous mode operation.
Client filter enable
Enable to use the WLAN client filter to trace only frames that are transmitted to, or received
from, a WLAN client with a specified MAC address.
Client filter MAC address
Specify a MAC address for WLAN client filtering. Note that the MAC filter is active only when
a trace is performed on an 802.11 interface.
Note Changes to packet trace settings take effect after a packet trace is restarted. Modifying the
parameters while a packet trace is running does not affect the current packet trace session. To
begin using new parameter values, an existing packet trace session must be stopped and
restarted.
Packet file trace
In packet file trace mode, the M220 stores captured packets in a file on the device.
Upon activation, the packet trace proceeds until one of the following occurs:
• The trace time reaches configured duration.
• The trace file reaches its maximum size.
• The administrator stops the trace.
During the trace, you can monitor the trace status, elapsed trace time, and the current trace file
size. You can select Refresh to update this information while the trace is in progress.