We are using WPA, TTLS/PAP and our APs are Cisco 1230's and 1240's with IOS code. The clients are 90% Macintosh OS 10.4.x.Regarding constant reassociation, I have found that a painstaking approach with 2.4Ghz channel selection, and AP power settings and data rates, plus using the Mac platform has
Title: RE: [WIRELESS-LAN] Frequent reassociations/reauthentications in 802.1x WLAN
Have you looked in your logs to see if the aps are changing channels? I know older versions of the IOS would only pick a channel on boot, but it seems like newer ones do it during normal operation. We had a
/28/2006 10:25 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Frequent reassociations/reauthentications in
802.1x WLAN
Jorge,
Thanks for the response. We are using Cisco AP 1131 and AP 1242 - we
don't use a controller, only WLSE to manage. We have the basic defaul
me material on that, I
would greatly appreciate it.
Frank
-Original Message-
From: Shumon Huque [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 28, 2006 10:44 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Frequent reassociations/reauthentications in
802.1x WLAN
Fas
On Wed, Sep 27, 2006 at 11:26:49PM -0500, Frank Bulk wrote:
> Shumon:
>
> Vendors have bandied about different authentication rates for RADIUS
> servers. What kinds of rates are you seeing, 50 auths/sec reasonable?
>
> Frank
Hmm, I think that any quoted numbers would have to be accompanied
by
Fascinating discussion .. thanks for all the comments and
suggestions.
Clearly AP transitions in an authenticated WLAN are very
costly. We'll continue tuning the AP deployment to see if
we can minimize them (as Julian is doing on his campus). But
judging from this thread, a large part of the pro
Jorge,
Thanks for the response. We are using Cisco AP 1131 and AP 1242 - we
don't use a controller, only WLSE to manage. We have the basic default
radio settings enabled. We tried turning off the non-aironet extensions
and the problem still persists. The intervals seem to be regular - for
Shumon,
We used to have the same problem when we had the Aironet solution a
couple of years back. It was actually due to the APs sending a
re-association packet/frame to the device, even if that device was
directly underneath the AP. What type of platform are you currently
running your infr
:49 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Frequent reassociations/reauthentications in
802.1x WLAN
Here's an example of the Intel 2100 roaming algorithm. This is an old
card and EOLd but is sheds some light on why it has major problems...
When the device d
r versions make most wireless NIC perform extremely bad in a
dense deployment.
-Emerson
-Original Message-
From: Shumon Huque [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 27, 2006 4:16 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Frequent reassociations/reaut
@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] Frequent reassociations/reauthentications in 802.1x
WLAN
We rolled out a WPA/802.1x authenticated WLAN to our student
residences this semester. We're using EAP-TTLS with PAP as
the inner authentication protocol. The EAP servers are a set
of centra
On Wed, Sep 27, 2006 at 04:49:54PM -0500, Michael Griego wrote:
> On Sep 27, 2006, at 3:15 PM, Shumon Huque wrote:
>
> >Is frequent reassociation the normal behavior in a dense
> >deployment of APs? I can understand that it might be for
> >highly mobile stations like wireless VoIP phones. But our
On Wed, Sep 27, 2006 at 03:41:23PM -0500, Julian Y. Koh wrote:
>
> This is exactly the problem that I referred to in my recent post of 9/18
> ("More fun with RADIUS"). We are working on adjusting the power levels and
> channel assignments of the various APs in the problem areas to cut down the
>
On Sep 27, 2006, at 3:15 PM, Shumon Huque wrote:
Is frequent reassociation the normal behavior in a dense
deployment of APs? I can understand that it might be for
highly mobile stations like wireless VoIP phones. But our
environment is composed of mostly stationary wireless laptops
in student ro
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At 4:15 PM -0400 9/27/06, Shumon Huque wrote:
>A large number of users seem to be repeatedly authenticating,
>some of them as frequently as every 30 seconds or every few
>minutes. Some debugging revealed that these users are frequently
>oscillating the
We rolled out a WPA/802.1x authenticated WLAN to our student
residences this semester. We're using EAP-TTLS with PAP as
the inner authentication protocol. The EAP servers are a set
of centralized RADIUS servers that perform Kerberos5 password
verification to our KDCs in the backend.
We've notic
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