Hi,

On Mon, 1 Feb 2016, Hartmaier Alexander wrote:
> Hi,
> I'd say the client doesn't trust the radiator certificate and stops the
> EAP conversation.

the same client worked when on site.  It failed when offsite and the requests 
were coming over the vpn.

It turned out to be a firewall with huge mtu on the inside interface that was 
sending jumbograms that got dropped on the radius.

Greetings
Christian

>
> Best regards, Alex
>
> On 2016-01-18 12:30, Christian Kratzer wrote:
>> Hi Sami,
>>
>> On Mon, 18 Jan 2016, Sami Keski-Kasari wrote:
>>> Hello Christian,
>>>
>>> Usually this kind of behaviour is due to MTU problems.
>>> There can be differences between different vendors for example how they
>>> do tunnelling and how it affects to MTUs etc.
>>>
>>> Please try to adjust maximum TLS fragment size to see if it helps.
>>>
>>> Please see more at page 92
>>> 5.21.39 EAPTLS_MaxFragmentSize
>>> in ref.pdf.
>> yes we already have that set to 500.
>>
>> Just for understanding EAPTLS_MaxFragmentSize would only affect what 
>> radiator sends.  There is no way to limit the size of the fragements coming 
>> from the ap.
>>
>> The trace4 logs stop exactly at the point radiator has completed sending of 
>> it's certificate to the client.
>>
>> I would assume that I would at least see the first of the packets with the 
>> client certificates.  If not this could perhaps also be an issue with the 
>> network dropping incoming udp fragments and the os never being able to 
>> reassemble incomplete packets.  I will have the customer check into that as 
>> well.
>>
>> Greetings
>> Christian

-- 
Christian Kratzer                   CK Software GmbH
Email:   c...@cksoft.de               Wildberger Weg 24/2
Phone:   +49 7032 893 997 - 0       D-71126 Gaeufelden
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Mobile:  +49 171 1947 843           Geschaeftsfuehrer: Christian Kratzer
Web:     http://www.cksoft.de/
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