vpn client 3.x to pix with external auth.

[dnelson]

What is the cheapest but most reliable radius server to use with pix 515 and vpn 3.x clients for external authentication. I just found out that the pix does not authenticate vpn 3.x clients locally like the router ios does. So now i need a good but cheap radius solution to put on customers internal NT/2000 server.

Any recommendations would be appreciated

[alburton]

W2K has it's own Radius server which can use Active Directory to authenticate users. It's call the Internet Authentication Service and users need to be granted dial-in access permission to be authenticated.

[dnelson]

Thank you. However, I just double checked and currently all 4 servers are either NT4 or Citrix Terminal Servers on NT not win2k.

Any ideas.