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Q: Windows 2000 VPN: id#187452 ( Answered 5 out of 5 stars,   0 Comments )
Question  
Subject: Windows 2000 VPN: id#187452
Category: Computers > Operating Systems
Asked by: pegasus_oz-ga
List Price: $60.00
Posted: 09 Apr 2003 14:35 PDT
Expires: 09 May 2003 14:35 PDT
Question ID: 188459
Note for Theta-ga:

It seems that due to my lack of familiarity with the Google
"Ask a Question" scheme I did the wrong thing: When I felt
that I had received a good answer I closed the question.
Sorry about this.

I am now reopening it so that you can claim your well deserved
reward. I had a supplementary query for which I was hoping to
get a response. On my Remote Access Server the Event Logger now
records this warning on every reboot:
"A certificate could not be found. Connections that use the 
L2TP protocol over IPSec  require the installation of a machine 
certificate, also known as a computer  certificate. No L2TP 
calls will be accepted.".

How do I go about installing a "Machine Certificate" or
"Computer Certificate"?

Thanks for your help.
Answer  
Subject: Re: Windows 2000 VPN: id#187452
Answered By: theta-ga on 10 Apr 2003 02:05 PDT
Rated:5 out of 5 stars
 
Hi pegasus_oz-ga,
   Glad to see you back! :-)
   The Google Answers interface can be a little confusing at first. To
get the most out of the Google Answers service, I recommend that you
take a look at this tutorial that a fellow researcher wrote, for users
new to GA:
       - What to do after you ask a question on Google Answers
         (http://www.christopherwu.net/google_answers/answer_guide.html)

   As for your query, you will recall that traffic on a VPN uses two
protocols, PPTP and L2TP. You can allow clients to connect using any,
or both these protocols. If you choose to use only PPTP, then all you
have to do to get rid of this message is set the number of L2TP ports
on your machine to 0. You can find exact step by step instructions for
this in this MS KnowledgeBase article:
       - Article 245476: Preventing RemoteAccess Event ID 20192 from
Occurring in the System Event Log
         (http://support.microsoft.com/default.aspx?scid=kb;EN-US;245476)

  If, on the other hand, you do plan to use L2TP with IPSec, you will
need to install a machine certificate obtained from a Certificate
Authority. You can find step by step instructions for installing a
Certificate Authority, in the following MSKB article:
       - HOW TO: How to Install/Uninstall a Public Key Certificate
Authority for Windows 2000
         (http://support.microsoft.com/default.aspx?scid=kb;EN-US;231881)
 Instructions for installing the certificate can be found here:
       - HOW TO: Install a Certificate for Use with IP Security
        (http://support.microsoft.com/default.aspx?scid=kb;EN-US;253498)
 You might also find this step by step guide of interest:
       - Step-by-Step Guide to Internet Protocol Security (IPSec)
         (http://www.microsoft.com/windows2000/techinfo/planning/security/ipsecsteps.asp)


Hope this helps.
If you need any clarifications, just ask!
Regards,
Theta-ga
:-)



=======================================
Google/Google Groups Search Terms Used:
  "windows 2000" l2tp vpn certificates
pegasus_oz-ga rated this answer:5 out of 5 stars
Very good an thorough answer. The researcher was quite willing to run
with me and answer my follow-up questions until my question was fully
answered.

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