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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">Dear All,</span></font></p>
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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">I am using EAP-TTLS authentication mechanism for between WiMAX client and AAA on Linux environment</span></font></p>
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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">During EAP negotiation phase following steps are successfully completed.</span></font></p>
<p class="MsoNormal" style="margin-left:.75in; text-indent:-.5in"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"><span style="">1.<font size="1" face="Times New Roman"><span style="font:7.0pt "Times New Roman"">                 
</span></font></span></span></font><font face="Arial"><span style="font-family:Arial">Identity exchange</span></font></p>
<p class="MsoNormal" style="margin-left:.75in; text-indent:-.5in"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"><span style="">2.<font size="1" face="Times New Roman"><span style="font:7.0pt "Times New Roman"">                 
</span></font></span></span></font><font face="Arial"><span style="font-family:Arial">Server/Client EAP-TTLS start</span></font></p>
<p class="MsoNormal" style="margin-left:.75in; text-indent:-.5in"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"><span style="">3.<font size="1" face="Times New Roman"><span style="font:7.0pt "Times New Roman"">                 
</span></font></span></span></font><font face="Arial"><span style="font-family:Arial">Client Hello</span></font></p>
<p class="MsoNormal" style="margin-left:.75in; text-indent:-.5in"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"><span style="">4.<font size="1" face="Times New Roman"><span style="font:7.0pt "Times New Roman"">                 
</span></font></span></span></font><font face="Arial"><span style="font-family:Arial">Server Hello-Server Certificate-Server Key Exchange-Server Hello Done</span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"> </span></font></p>
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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">EAP_Failure is coming consistently during “<b><font color="red"><span style="color:red; font-weight:bold">Client Key Exchange phase</span></font></b>”.</span></font></p>
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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">This issue is coming consistently for multiple clients during Network Entry.</span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"> </span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">Following is the error from AAA.</span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686525 : <FREERADIUS LOG>   rlm_eap_tls: <<< TLS 1.0 Alert [length 0002],
 fatal unknown_ca</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686541 : <FREERADIUS LOG> TLS Alert read:fatal:unknown CA
</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686559 : <FREERADIUS LOG>     TLS_accept:failed in SSLv3 read client certificate
 A </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686579 : <FREERADIUS LOG> rlm_eap: SSL error error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1
 alert unknown ca</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686593 : <FREERADIUS LOG> rlm_eap_tls: SSL_read failed inside of TLS (-1),
 TLS session fails.</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686605 : <FREERADIUS LOG>   eaptls_process returned 13</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue"> </span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686618 : <FREERADIUS LOG>   rlm_eap: Freeing handler</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686650 : <FREERADIUS LOG> ++[eap] returns reject</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686663 : <FREERADIUS LOG> auth: Failed to validate the user.</span></font></p>
<p class="MsoNormal" style="text-autospace:none"><font size="2" color="blue" face="Courier New"><span style="font-size:10.0pt; font-family:"Courier New"; color:blue">2012/06/04 15:52:41:686688 : [TX] Access-Reject</span></font></p>
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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">To resolve this issue, your timely help will be appreciated.</span></font></p>
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<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">Thanks !</span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt; font-family:Arial">Rathod.</span></font></p>
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