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PPTP authentication query

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Technical User
Sep 8, 2005
26
GB
I run a VPN using PPTP. I heard its not that secure because it sends the user name and password in plain text during the authentication. The VPN connects to a 2003 server with running AD. There is an option for authentication in IAS. I have choosen MS-Chapv2. The question is: Does the vpn authenticate itself still in plain text then use Ms-Chapv2 to authenticate itself to the server or use Ms-Chapv2 to authenticate onto the VPN?
 
I'm 85% sure I'm right in saying this - from what I remember of CHAP the password is definately encrypted and I think the username too.

The issue with PPTP is that the encryption is not as complicated or as robust as IPSEC. The fact it uses CHAP can be a weak point as can the actual encryption.

I use a mixture.. PPTP is excellent for occasional homeworkers, full blown IPSEC for remote offices.
 
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