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Different AAA servers for different vpn groups on Cisco PIX.

Posted on 2005-03-09
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Last Modified: 2013-11-16

A difficult one here for you experts :)

I want to start using tokens for a select group of vpn clients. All VPN authentication is done against my windows 2000 IAS server (radius). For tokens I use RSA/ACE Server which is installed on another server. I have 2 vpngroups (group ABC and group DEF) in my PIX config. What I want to do is make group ABC authenticate against the IAS server, and group DEF against the RSA server.

I don't think this can be done (after I tried everythnig). This is a breeze for the concentrator so I automatically assumed that it was also possible on the PIX; boy was I wrong, or was I? Anyone?
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Question by:martap
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5 Comments
 
LVL 79

Expert Comment

by:lrmoore
ID: 13499820
Using Cisco client or Microsoft client?
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LVL 5

Author Comment

by:martap
ID: 13499853

using the Cisco Client.
0
 
LVL 79

Expert Comment

by:lrmoore
ID: 13500088
Unfortunately, it appears that you can only assign one authentication method per crypto map.
However, you can use one authentication method for the Cisco VPN clients and different ones for multiple PPTP VPDN groups...

aaa-server RADIUS protocol radius
aaa-server RADIUS (inside) host 192.168.122.150 mysecretkey timeout 10
aaa-server RSA protocol radius
aaa-server RSA (inside) host 192.168.122.149 mysecretkey timeout 10
!
crypto map MAP client authentication RADIUS
!
vpdn group PPTP client authentication aaa RSA

!
aaa-server RSA2 protocol tacacs+
aaa-server RSA2 (inside) host 192.168.122.148 mysecretkey timeout 10
vpdn group PPTP2 client authentication aaa RSA2
vpdn group PPTP3 client authentication aaa LOCAL
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LVL 7

Accepted Solution

by:
minmei earned 2000 total points
ID: 13505847
Can you get the Windows 2000 server upgraded to 2003? Reason is that 2003 IAS supports Connection Request Processing - a Microsoft name for a RADIUS proxy server.

This will allow you to point everything to 2003 IAS from PIX but then redirect authentications to the RSA server when appropriate.

Link at http://www.microsoft.com/resources/documentation/ WindowsServ/2003/standard/proddocs/en-us/sag_ias_crp_intro.asp

HTH
0
 
LVL 5

Author Comment

by:martap
ID: 13529070

Fantastic, works like a charm, minmei...

I also tried your solution, lrmoore, but I couldn't get the tokens to work with PPTP. Did you ever see it work?
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