Understood about "dropped packets, incorrect load-balancing, or even just out 
of sequence requests will cause failure." - but with 1 out of 3 login failures 
shouldn't we be seeing lots of complaints about the inability to connect to 
WiFi. We did have a network load balancer issue this week that did cause an 
small uptick in 802.1X failures and this generated many complaints from users 
unable to login. It seems like these 1 out of 3 login failures aren't actually 
being generated by a user attempting to login (or they would be complaining) - 
can wireless controllers send spurious logins to the radius servers, something 
like a keepalive or are these just failed logins that the user doesn't notice 
for some odd reason.

---
Roberto Ullfig - rull...@uic.edu
Systems Administrator
Enterprise Applications & Services | Technology Solutions
University of Illinois - Chicago
________________________________
From: Hugh Irvine <h...@radiatorsoftware.com>
Sent: Thursday, August 24, 2023 10:46 PM
To: Ullfig, Roberto Alfredo <rull...@uic.edu>; Dubravko Penezic 
<dpene...@srce.hr>; radiator@lists.open.com.au <radiator@lists.open.com.au>
Subject: Re: [RADIATOR] UNS: Basic Question on 802.1X



Hello Roberto -


As EAP is a sequence of RADIUS requests, anything that interrupts the sequence 
will result in a failure.


Ie. dropped packets, incorrect load-balancing, or even just out of sequence 
requests will cause failure.


This being the case it is entirely possible that the same device can behave as 
you observe.


regards


Hugh



On 25/8/2023 04:44, Ullfig, Roberto Alfredo via radiator wrote:
That's not always the case though - for example (log chopped).

Aug 24 07:59:46 802.1X OK
Aug 24 08:01:30 802.1X FAILED
Aug 24 09:15:44 802.1X OK

139983 failed
357509 ok

19714 different mac addresses both had a failure and a success. If it's the 
same device that's misconfigured it should always fail

---
Roberto Ullfig - rull...@uic.edu<mailto:rull...@uic.edu>
Systems Administrator
Enterprise Applications & Services | Technology Solutions
University of Illinois - Chicago
________________________________
From: Ullfig, Roberto Alfredo <rull...@uic.edu><mailto:rull...@uic.edu>
Sent: Thursday, August 24, 2023 1:19 PM
To: Dubravko Penezic <dpene...@srce.hr><mailto:dpene...@srce.hr>; 
radiator@lists.open.com.au<mailto:radiator@lists.open.com.au> 
<radiator@lists.open.com.au><mailto:radiator@lists.open.com.au>
Subject: Re: UNS: [RADIATOR] Basic Question on 802.1X

Yes, I think you're right, I spot checked several of them and they never 
succeed.

---
Roberto Ullfig - rull...@uic.edu<mailto:rull...@uic.edu>
Systems Administrator
Enterprise Applications & Services | Technology Solutions
University of Illinois - Chicago
________________________________
From: Dubravko Penezic <dpene...@srce.hr><mailto:dpene...@srce.hr>
Sent: Thursday, August 24, 2023 8:34 AM
To: Ullfig, Roberto Alfredo <rull...@uic.edu><mailto:rull...@uic.edu>; 
radiator@lists.open.com.au<mailto:radiator@lists.open.com.au> 
<radiator@lists.open.com.au><mailto:radiator@lists.open.com.au>
Subject: Re: UNS: [RADIATOR] Basic Question on 802.1X

Hi Roberto,

if you "only" see FAILD no error or something elese, in you log,  it is
normal and just reflact fact that is more and more devices which try to
connect to eduroam, but doesnt have proper configuration.

Some time on national level logs FAIL to OK may be 70:30%.

Regards,
Dubravko

On 8/24/23 15:28, Ullfig, Roberto Alfredo via radiator wrote:
> My knowledge of our 802.1X configuration is barebones and we inherited
> this configuration from ~20 years ago. We are seeing lots of failures in
> this part for a long time most likely (omitted some more sensitive details):
>
> <Handler Client-Identifier=n8021x>
> #
> # The rock8021x block and 8021x blocks are identical. The rock8021x
> block is needed as it acts
> # differently than the WISMs in that it does a login-user rather than a
> access-request. This
> # interferes with the 8021x clause that we have for uic-guest support
> #
>          <AuthBy FILE>
>                  # Users must be in this file to get anywhere. In this
> example,
>                  # it reques an entry for 'anonymous' which is the
> standard username
>                  # in the outer requests, and it also requires an entry
> for the
>                  # actual user name who is trying to connect (ie the
> 'Login name' entered
>                  # in the Funk Odyssey 'Edit Profile Properties' page
>                  Filename %D/users
>
>                  EAPAnonymous %0@uic.wireless
>                  EAPType PEAP, TTLS
>                  EAPTLS_PEAPVersion 0
>                  EAPTLS_CAFile /etc/radiator/certificatechain.crt
>                  EAPTLS_CertificateFile /etc/radiator/wireless.crt
>                  EAPTLS_CertificateType PEM
>                  EAPTLS_PrivateKeyFile /etc/radiator/wireless.key
>                  EAPTLS_MaxFragmentSize 1000
>                  AutoMPPEKeys
>                  EAPTLS_SessionResumption 0
>          </AuthBy>
>
>          RewriteUsername s/^([^@]+).*/$1/
>          RewriteUsername s/\s+//g
>          RewriteUsername s/^.*\\(.*)/$1/
>          RewriteUsername tr/[A-Z]/[a-z]/
>
>          <AuthBy SUSPEND>
>                  Dir /mnt/...
>          </AuthBy>
>
>          <AuthBy SUSPEND>
>                  Dir /mnt/...
>          </AuthBy>
>
>          <AuthBy WIRELESS>
>                  Dir /mnt/...
>          </AuthBy>
>
>          AcctLogFileName %L/wireless-detail
>
>          <AuthLog SYSLOG>
>                  LogSuccess 1
>                  LogFailure 1
>                  Facility local0
>                  SuccessFormat %T : '%U' from %C
> mac=%{Calling-Station-Id} NAS-Id=%{Called-Station-Id}
> PEAP-SSID=%{NAS-Identifier} -- 802.1X OK
>                  FailureFormat %T : '%u' from %C
> mac=%{Calling-Station-Id} NAS-Id=%{Called-Station-Id}
> PEAP-SSID=%{NAS-Identifier} -- 802.1X FAILED
>          </AuthLog>
>
> The failure rate is about 1 out of 3! But this does not to appear to be
> impacting anyone. The file "users" does not exist so I assume that
> entire Authby is ignored.
>
> What could be causing these failures? Filesystem access?
>
> ---
> Roberto Ullfig - rull...@uic.edu<mailto:rull...@uic.edu>
> Systems Administrator
> Enterprise Applications & Services | Technology Solutions
> University of Illinois - Chicago
>
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