Antonio Perez

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======CANNOT SET UP A PPTP VPN FROM MICROSOFT WINDOWS VISTA (TM) TO X-FAMILY USING AUTHENTICATION VIA JUNIPER/FUNK STEEL BELTED RADIUS SERVER======


**Symptoms:**
  * Cannot set up a PPTP VPN from Microsoft Windows Vista (TM) to X-family using authentication via Juniper/Funk Steel Belted RADIUS Server  
  
**Facts:**
  * Funk Software and Steel-Belted Radius are trademarks of Juniper Networks  
  * 3CRTPX505-73  
  * 3CRTPX505-96  
  * 3CRTPX506-96  
  * 3CRX506-96  
  * 3CRTPX5-25-96
  * 3CRTPX5-U-96  
  * TippingPoint  
  * PPTP  
  * VPN  
  * Microsoft Windows Vista  
  * Juniper  
  * Funk  
  * Steel Belted  
  * RADIUS  
  * X505  
  * X506  
  * X5  
  * 2.5.0  
  * 2.5.1  
 
**Causes:**
Microsoft Windows Vista (TM) enforces the use of MS-CHAPv2 authentication. The default setting for the Steel Belted RADIUS Server does not support this.  
 

**Fixes:**

Go to the "Users" page on the Steel Belted RADIUS Server, select the User that you wish to change to support MS-CHAPv2 and add the following two attributes: MS-MPPE-Recv-Key, MS-MPPE-Send-Key and Save the change. Alternatively you can set up a "Profile" that contains these two Attributes and point any number of Users to the Profile. Do not add the Attribute MS-CHAP2-Success with a hard-coded value as the Steel Belted RADIUS server generates it correctly by default with a dynamic value which is checked by the X-famiy device. 

 
 
  * Product(s):  TippingPoint, X Family  
  * Sub Product(s): X505, X506, X5  



 --- //[[nce@itclatam.com|David Gonzalez]] 2021/04/07 14:56//