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    <font face="Calibri">Hi Gianluca,<br>
      <br>
      thanks for your reply.<br>
      <br>
      No, they are sent by a standard WinSock-based application.<br>
      If it matters, we could move to a WinPCap-based sender...<br>
      <br>
      Best regards,<br>
      Alberto.<br>
    </font><br>
    On 01/09/2010 17:46, Gianluca Varenni wrote:
    <blockquote cite="mid:1D6D78E4A8054A99992FA9F0A4E2BE49@NELSON3"
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      <div><font face="Calibri">Is the packet sent by another
          WinPcap-based application?</font></div>
      <div>&nbsp;</div>
      <div><font face="Calibri">Have a nice day</font></div>
      <div><font face="Calibri">GV</font></div>
      <div style="font: 10pt Tahoma;">
        <div><br>
        </div>
        <div style="background: none repeat scroll 0% 0% rgb(245, 245,
          245);">
          <div style=""><b>From:</b> <a moz-do-not-send="true"
              title="alberto.avanzi@keeneo.com"
              href="mailto:alberto.avanzi@keeneo.com">Alberto Avanzi</a>
          </div>
          <div><b>Sent:</b> Wednesday, September 01, 2010 2:55 AM</div>
          <div><b>To:</b> <a moz-do-not-send="true"
              title="winpcap-users@winpcap.org"
              href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</a>
          </div>
          <div><b>Subject:</b> Re: [Winpcap-users] Multicast packets
            with TTL=0 reception problem under Windows Seven</div>
        </div>
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      <font face="Calibri">Just to confirm that it doesn't come from our
        (receiving) code (from our sending code maybe ?):<br>
        <br>
        even the WinPCap 4.1.2 "UDPDump" provided example fails to
        retrieve these packets.<br>
        <br>
        A.<br>
      </font><br>
      On 01/09/2010 11:09, Alberto Avanzi wrote:
      <blockquote cite="mid:4C7E1856.3010805@keeneo.com" type="cite"><font
          face="Calibri">Hi,<br>
          <br>
          our multicast-receiving application is based, since some
          years, on WinPCap.<br>
          <br>
          We use it under Windows XP and Windows Server 2003, and it
          works well for receiving multicast<br>
          packets independently from their TTL (0, 1 or 2) (with WinPCap
          4.0.2).<br>
          <br>
          The same application running on Seven (with WinPCap 4.1.2) is
          unable to receive packets with TTL = 0<br>
          (sent by another application on the same machine). It is
          clearly a reception problem, because if we use<br>
          standard socket code for receiving packets, we get them.<br>
          If we set the TTL=1, we receive the packets.<br>
          <br>
          Any idea ?<br>
          Should we modify something in our code in order to get them
          again ?<br>
          <br>
          Thanks a lot,<br>
          Alberto.<br>
          <br>
          <br>
        </font>
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