Deauthenticated messages in log

John Dowd jdowdster
Mon Sep 14 10:42:26 PDT 2009

On Thursday 10 September 2009 15:46:30 Dan Williams wrote:
> On Thu, 2009-09-10 at 15:19 -0400, John Dowd wrote:
> > I'm running hostapd v0.6.6 on a laptop with WPA2 authentication. I do
> > have connectivity between my AP and the client and it does authenticate
> > successfully. However lately, I've been seeing this message occurring in
> > the logs:
> >
> > Sep 10 15:13:01 linux-ivvo hostapd: wlan0: STA 00:12:cf:8f:06:6b IEEE
> > 802.11: deauthenticated due to local deauth request
> That indicates that something on the local machine is requesting
> deauthentication.  Perhaps you're running NetworkManager on the machine
> and not using NetworkManager to manage the wlan interface, in which case
> you're stepping on each other's toes?  If you don't want it to, there
> are a few ways to make NM ignore that interface.  Or, you could just let
> NM manage it.
> Dan
> > After the client connects and the handshake is reported to be complete
> > and then a few minutes elapse, I start seeing this message occuring.
> >
> > My question is, what causes this message and is it a symptom of a problem
> > or is this normal behaviour from a AP that is not seeing any traffic on
> > the connection?
> >
> > Cheers!!
> > _______________________________________________
> > HostAP mailing list
> > HostAP at
> >

I've been wrestling with this now for a few days. I have made sure that there 
is no network manager running of any kind. I still get the following 

wlan0: STA 00:12:cf:8f:06:6b IEEE 802.11: authenticated
wlan0: STA 00:12:cf:8f:06:6b IEEE 802.11: associated (aid 1)
wlan0: STA 00:12:cf:8f:06:6b IEEE 802.11: deauthenticated due to local deauth 

The interval of this messaging is about 4 seconds. I can't find any reason for 
something to be interfering with the interface. What would tell hostapd to 
perform a "deauthentication"? Who is sending this request to hostapd? Is it 
the kernel? some daemon? Is it generated internally by hostapd after some 
state has been recognized?


"To Err is human, to forgive is NOT company policy."

John Dowd
S/W Contractor
email: jdowd at gmail dot com
Cell: (613)316-7884
Home: (613)234-7884
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