VPN - RRAS - Verify Caller ID

  • From: "William Robertson" <robertson.william@xxxxxxxxxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Fri, 17 Oct 2003 12:42:10 +0200

Hi there

I have a Cisco RAD device setup to use RADIUS authentication via Internet
Authentication Services on my Domain Controller. This works hundreds!!

My VPN clients are authenticated by a "Group Membership" policy within RRAS
on my ISA Server and this also works hundreds.

EXCEPT if as part of my IAS authentication I enable the "Verify Caller ID"
option in the Dial-In tab in AD Users & Computers, when I do this my VPN
users are no longer able to connect and they get an error message stating
the following:
Error 649: The account does not have permission to dial in

I have found the problem to be resolved simply by removing the "Verify
Caller ID" option, but this then throws out the (limited) security that I
can get by in actual fact ensuring that users are dialing in from legitimate
locations.

Does anyone have any comments on this?

Cheers
William R.



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