<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.5pt;
font-family:Consolas;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:Consolas;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
/* List Definitions */
@list l0
{mso-list-id:195239402;
mso-list-type:hybrid;
mso-list-template-ids:122195550 -1243076768 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0E8;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;
mso-fareast-font-family:Calibri;
mso-bidi-font-family:"Times New Roman";}
@list l1
{mso-list-id:1046684542;
mso-list-type:hybrid;
mso-list-template-ids:358938904 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l1:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
-->
</style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="Section1">
<p class="MsoNormal"><span style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have Checked all the Packet Fields w.r.t Registrar-Nounces and Enrolee- Nounces with previous messages M2 and M1 with M3
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">But all are looking fine.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">And also I observed no configuration errors w.r.t M3 messages before returning WSC-Nack message from Router.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">My Questions are<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">What are the possible cases for router or registrar returning WSC-Nack messages?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Is there any Router specific like it doesn’t support WPS or having any broken implementation[Using Dlink Dir-601]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> Wireshark log w.r.t config error at M3 message: [10 09 00 02 00 00 ]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">+ Configuration Error :No Error (0x0000)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Hari<o:p></o:p></span></p>
<p class="MsoPlainText">------------------------------<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Message: 3<o:p></o:p></p>
<p class="MsoPlainText">Date: Sat, 21 Apr 2012 18:36:35 +0300<o:p></o:p></p>
<p class="MsoPlainText">From: Jouni Malinen <j@w1.fi><o:p></o:p></p>
<p class="MsoPlainText">Subject: Re: wpa_supplicant: WPS Support-WSC_NACK packets<o:p></o:p></p>
<p class="MsoPlainText">To: hostap@lists.shmoo.com<o:p></o:p></p>
<p class="MsoPlainText">Message-ID: <20120421153635.GC3014@w1.fi><o:p></o:p></p>
<p class="MsoPlainText">Content-Type: text/plain; charset=us-ascii<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">On Wed, Apr 18, 2012 at 04:38:58PM +0000, <a href="mailto:hari.c36@wipro.com">
hari.c36@wipro.com</a> wrote:<o:p></o:p></p>
<p class="MsoPlainText">> Through supplicant I'm trying to establish WPS connection using RAlink wifi dongle.<o:p></o:p></p>
<p class="MsoPlainText">> But It was unsuccessful and if we check Packet captures its going upto M3 packet after M3 router is returning WSC_NACK packets and dongle inturn responds with WSC_NACK packets.<o:p></o:p></p>
<p class="MsoPlainText">> So can I know wht will be the reason for WSC_NACK PACKETS from Router.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><b>Did you check which Configuration Error value is used in the WSC_NACK message?<o:p></o:p></b></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-- <o:p></o:p></p>
<p class="MsoPlainText">Jouni Malinen PGP id EFC895FA<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Hari Prasad M C (WT01 - Product Engineering Services)
<br>
<b>Sent:</b> Wednesday, April 18, 2012 10:14 PM<br>
<b>To:</b> 'j@w1.fi'<br>
<b>Cc:</b> 'hostap@lists.shmoo.com'<br>
<b>Subject:</b> wpa_supplicant: WPS Support-WSC_NACK packets<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Through supplicant I’m trying to establish WPS connection using RAlink wifi dongle.<o:p></o:p></p>
<p class="MsoNormal">But It was unsuccessful and if we check Packet captures its going upto M3 packet after M3 router is returning WSC_NACK packets and dongle inturn responds with WSC_NACK packets.<o:p></o:p></p>
<p class="MsoNormal">So can I know wht will be the reason for WSC_NACK PACKETS from Router.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hari<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<P><strong><span style='font-size:10.0pt;font-family:
"Palatino Linotype","serif";color:green'> Please do not print this email unless it is absolutely necessary. </span></strong><span style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p> The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. </p>
<p>WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. </p>
<p>
www.wipro.com
</p>
</body>
</html>