WLANDEBUG(8) FreeBSD System Manager's Manual WLANDEBUG(8)
NAME
wlandebug - set/query 802.11 wireless debugging messages
SYNOPSIS
wlandebug [-d | -i ifnet] [-flag|+flag ...]
DESCRIPTION
The wlandebug command is a tool for enabling and disabling debugging
messages in the wlan(4) module. Running wlandebug without any options
will display the current messages enabled for the specified network
interface (by default, ``wlan0'). The default debugging level for new
interfaces can be set by specifying the -d option. When run as the
super-user wlandebug can be used to enable and/or disable debugging
messages.
To enable debugging messages of a certain type use +type; to disable such
messages use -type. Multiple messages can be enabled and disabled with a
single command.
Messages are organized in the following groups:
debug general debugging facilities; equivalent to setting the debug
parameter with ifconfig(8).
dumppkts dump packet contents on transmit and receive.
crypto crypto-related work.
input errors encountered during input handling.
xrate extended rate set handling (for 802.11g).
elemid information element processing in 802.11 management frames.
node management of per-station state.
assoc 802.11 station association processing; particularly useful to
see when stations join and leave a BSS.
auth 802.11 station authentication processing.
scan scanning operation; especially useful for debugging problems
with not locating an access point.
output errors encountered during output handling.
state wlan(4) state machine operation.
power 802.11 power save operation; in hostap mode this enables
copious information about buffered frames for stations
operating in power save mode.
hwmp trace operation of Hybrid Wireless Mesh Protocol processing.
dot1xsm 802.1x state machine operation; not presently meaningful as
802.1x protocol support is implemented in user mode by the
hostapd(8) program.
radius radius backend operation as it relates to 802.1x operation; not
presently meaningful as 802.1x protocol support is implemented
in user mode by the hostapd(8) program.
raddump dump packets exchanged with the radius backend for 802.1x
operation; not presently meaningful as 802.1x protocol support
is implemented in user mode by the hostapd(8) program.
mesh trace operation of 802.11s mesh protocol processing.
wpa trace operation of the WPA protocol; only partly meaningful as
WPA protocol support is mostly implemented in user mode by the
hostapd(8) and wpa_supplicant(8) programs.
acl trace operation of the Access Control List (ACL) support; see
wlan_acl(4) for more details.
wme trace operation of WME/WMM protocol processing.
superg trace operation of Atheros SuperG protocol processing.
doth trace operation of IEEE 802.11h protocol processing.
inact trace station inactivity processing; in particular, show when
stations associated to an access point are dropped due to
inactivity.
roam trace station mode roaming between access points.
rate trace transmit rate control operation.
EXAMPLES
The following might be used to debug basic station mode operation:
wlandebug -i wlan1 scan+auth+assoc
it enables debug messages while scanning, authenticating to an access
point, and associating to an access point.
SEE ALSO
ifconfig(8)
The /usr/src/tools directory contains some utilities that might be
relevant to debug wireless issues.
NOTES
Different wireless drivers support different debugging messages. Drivers
such as ath(4) and ral(4) that depend on the wlan(4) module for 802.11
protocol processing typically support most of the debugging messages
while devices that implement parts of the 802.11 protocol in firmware do
not.
Some debugging messages are no longer meaningful because protocol
processing has moved from the operating system to user mode programs such
as hostapd(8) and wpa_supplicant(8).
FreeBSD 15.1-STABLE-HBSD August 17, 2015 WLANDEBUG(8)