---
name: "80211debug"
section: "8"
platform: "linux"
package: "madwifi-tools"
version: "1:0.9.4+r3685.20080531+dfsg-1"
release: "Debian 5.0 (Lenny)"
platforms: ["linux"]
url: "https://new.carta.tech/80211debug"
---

# 80211debug(8)

control the debug output from the madwifi 802.11 stack

## NAME

**80211debug** - control the debug output from the madwifi 802.11 stack

## SYNOPSIS

**80211debug** \[-i interface\] +/- bitmap

## DESCRIPTION

Set and clear debug bitmaps for the madwifi 802.11 stack. Each argument is a  bitmap or its alias. If a bitmap alias is used then it must be prefixed by  either "-" to clear or "+" to set the corresponding bitmap.

## OPTIONS

- **-?**

  Display usage and list all debug bitmaps.

- **-i interface**

  The madwifi interface to debug. If no interface is specified, **80211debug** defaults to ath0.

- **+/- bitmap**

  Set (+) or clear (-) a bitmap. It's quite tedious to remember the bitmaps, fortunately there is a user friendly interface which can be used to enable or disable debugging output by giving the name of the component or subsystem.

All debugging output can be enabled with 0xffffffff bitmap, while 0x0 disables all debug output.

## BITMAP ALIASES

**debug** - IFF\_DEBUG equivalent\
 **dumppkts** - IFF\_LINK2 equivalent, dump packets\
 **crypto** - crypto modules\
 **input** - packet input handling\
 **xrate** - rate set handling\
 **elemid** - element id parsing\
 **node** - node management\
 **assoc** - association handling\
 **auth** - authentication handling\
 **scan** - scanning\
 **output** - packet output handling\
 **state** - 802.11 state machine\
 **power** - power save functions\
 **dot1x** - 802.1x authenticator\
 **dot1xsm** - 802.1x state machine\
 **radius** - 802.1x radius client\
 **raddump** - 802.1x radius packet dump\
 **radkeys** - 802.1x key dump\
 **wpa** - WPA/RSN protocol\
 **ac1** - ACL handling\
 **wme** - WME protocol\
 **superg** - super G turbo mode\
 **doth** - 802.11h (DFS/TPC) handling\
 **inact** - timeout of inactive nodes\
 **roam** - station mode roaming\

## EXAMPLES

- **80211debug -i ath1 0xffffffff**

  Enable all debug bitmaps on ath1.

- **80211debug +state +assoc**

  Set state and assoc bitmaps to  on for ath0.

- **80211debug -state**

  Disable state bitmap for ath0.

## SEE ALSO

[**athdebug**(8)](/athdebug/8.md), **http://madwifi.org/wiki/DevDocs/AthDebug**

## AUTHOR

This manual page was written by Kel Modderman \<kelrin@tpg.com.au\> and was based upon previous text written by Eric S. Raymond.