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<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>Hi
people,</FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>I am trying to
implement L2TP IPSEC and Windows XP. I follow all the article of Nate Carlson
(<A
href="http://www.natecarlson.com/linux/ipsec-l2tp.php">http://www.natecarlson.com/linux/ipsec-l2tp.php</A>),
but Windows XP couldnīt establish the connection. </FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>I noticed three
things, In Windows XP, the machine certificate appear with a warning, where says
that "the certificate authority doesnīt look like to have permission to issue
certificates". </FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>The other thing
appear in the /var/log/secure, where has the following
message:</FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>"next payload type
of ISAKMP Hash Payload has an unknown value:"</FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>The thirty thing is
the message that Windows XP L2TP Client shows "the machine donīt have an valid
certificate"</FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial size=2>Anyone has any
tips?</FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2>Thanks,</FONT></SPAN></DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=206594310-11012008><FONT face=Arial
size=2>André</FONT></SPAN></DIV></BODY></HTML>