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All Forums >> [ISA Server 2004 General ] >> General >> RADIUS AUTHENTICATION Page: [1]
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RADIUS AUTHENTICATION - 5.Sep.2007 12:12:33 PM   


Posts: 4
Joined: 5.Sep.2007
Status: offline
I am currently investiagting using our NLB ISA 2004 array as a VPN Solution for our business. One area that I cannot seem to find the relevant documentation on is authentication through ISA 2004 using RADIUS. Our ISA array is on a seperate workgroup and thus we would need to use RADIUS for user authentication, however, although all of the documentation explains that radius is easy to configure, it all points at using IAS as the Radius Server with ISA being the client.

We currenly have a CISCO based VPN solution (supported by our Network department) that has the ability to use tacacs+ as well as RADIUS for authentication. Would ISA 2004 be able to handle authentication using tacacs+? I am aware that tacacs+ uses tcp rather than udp for starters.

Any pointers would be appreciated. We are at a very early investigation stage with this


< Message edited by gnicol -- 5.Sep.2007 12:15:03 PM >
Post #: 1
RE: RADIUS AUTHENTICATION - 6.Sep.2007 5:21:19 AM   


Posts: 144
Joined: 26.Mar.2002
Status: offline

As you stated there are differences between TACACS+ and RADIUS. TACACS+ is not RADIUS and handles AAA differently to RADIUS. TACACS is proprietary, breaks down authentication requests into multiple packets unlike RADIUS (single access-request), and normally works using ACS as a RADIUS provider, with a view to performing network management of Cisco devices.... so.... no, ISA won't work with TACAS... (although might want to look at IAG)

How's you VPN currently configured?


(in reply to gnicol)
Post #: 2

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