OK, the plot thickens.

When I do the same debug on a Cisco 2950 switch I see the access-accept packet 
being passed back to the switch, but I see:

RADIUS: no appropriate authorization type for user.

Could it be that my users are passing authentication, but then for some reason 
failing authorization? This would explain why I'm seeing multiple dot1x bubbles 
popping up and asking for credentials, but I'm not sure why it would suddenly 
start occurring across different switches. Perhaps it is something to do with 
Packetfence/Radius afterall??

Thanks to anybody that can help.

Cheers,
Andi

-----Original Message-----
From: Morris, Andi [mailto:[email protected]] 
Sent: 04 December 2013 11:15
To: '[email protected]'
Subject: Re: [PacketFence-users] dot1x being denied on wired clients

Ah I see what you're saying now. We're not using port security, just dot1x 
(unless dot1x invokes port security somehow). However, we're seeing the issue 
on several other switches, a mix of 2950 and 2960, and it all seemed to happen 
at exactly the same time, which is why I was wondering whether there was a full 
table on the core.

Cheers,
Andi

-----Original Message-----
From: Francois Gaudreault [mailto:[email protected]]
Sent: 03 December 2013 17:10
To: [email protected]
Subject: Re: [PacketFence-users] dot1x being denied on wired clients

Not on the core, on your actual 2960. If the TCAM/Mac address table is still 
having space, is it possible this mac is a secure mac address on another port 
using port-security on the same switch?

Francois

On 12/3/2013, 11:29 AM, Morris, Andi wrote:
> Do you mean on our core switch? Running a show counters on the tcam suggests 
> that they're fine:
>
> cyhr1#sh tcam counts
>                 Used        Free        Percent Used       Reserved
>                     ----        ----        ------------       --------
>   Labels:           4         508            0
>
> ACL_TCAM
>    Masks:      16        4080            0                     0
> Entries:       49       32719            0                     0
>
> QOS_TCAM
>    Masks:      0        4096            0                     0
> Entries:      0       32768            0                     0
>
>      LOU:      0          64            0
>    ANDOR:      0          16            0
>    ORAND:      0          16            0
>      ADJ:      0        1024            0
>
> Wouldn't this also affect wireless clients if the tcam table was full?
>
> Cheers,
> Andi
>
>
> -----Original Message-----
> From: Francois Gaudreault [mailto:[email protected]]
> Sent: 26 November 2013 15:29
> To: [email protected]
> Subject: Re: [PacketFence-users] dot1x being denied on wired clients
>
> Clear the TCAM and retry.
>
> FG
>
> On 11/22/2013, 10:36 AM, Morris, Andi wrote:
>> Hi all,
>>
>> Firstly, can I apologise in advance, I don't think this is actually a 
>> packetfence issue, however other users of packetfence may have come 
>> across this and might be able to help me resolve it.
>>
>> Since yesterday we are seeing our wired devices on our packetfence 
>> controlled network being prompted for credentials each time they are 
>> plugged in/turned on/rebooted, and often the credentials are being 
>> rejected.
>>
>> Radius debug logs show that Access-Accept is being sent to the 
>> device, but the device is not ever getting onto the network.
>>
>> Enabling debug on my Cisco 2960 test switch I can see the error below:
>>
>> %DOT1X_SWITCH-5-ERR_ADDING_ADDRESS: Unable to add address
>>
>> I'm not 100% convinced that this is the same error that we're seeing 
>> on our user switches, I'm waiting for some hits on other switches 
>> I've enabled debugging on to confirm this.
>>
>> The reason I don't think that this is a packetfence/radius issue is 
>> that we're not having any issues with wireless clients.
>>
>> I don't know yet whether it is affecting just Windows users or 
>> everyone, I'm waiting for confirmation on this.
>>
>> We are not forcing devices to validate radius certificates (yet).
>>
>> Has anyone seen this before?
>>
>> Cheers,
>>
>> Andi
>>
>> -------------------------------------
>>
>> Andi Morris
>>
>> IT Security Officer
>> Cardiff Metropolitan University
>>
>> T: 02920 205720
>> E: [email protected] <mailto:[email protected]>
>>
>> --------------------------------------
>>
>>
>>
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>>
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>
> --
> Francois Gaudreault
> Architecte de Solution Cloud | Cloud Solutions Architect 
> [email protected]
> 514-629-6775
> - - -
> CloudOps
> 420 rue Guy
> Montréal QC  H3J 1S6
> www.cloudops.com
> @CloudOps_
>
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--
Francois Gaudreault
Architecte de Solution Cloud | Cloud Solutions Architect 
[email protected]
514-629-6775
- - -
CloudOps
420 rue Guy
Montréal QC  H3J 1S6
www.cloudops.com
@CloudOps_


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