I'm using ACS 3.1 to authenticate VPN and Dial-up users, the dial-up users are currently set up on an old 3Com RADIUS server. During testing I'd like to leave the Dial-up users on the 3Com server and have ACS forward the authentication requests.
I'd like to use the 'Unknown User Policy' feature to forward the requests, but ACS doesn't support 'standard' RADIUS under the 'External Databases'.
Now there is the 'Proxy Distribution Table' but I won't be able to get the Dial-in users to add a 'Character string' to their username.
So any ideas of how I can configure ACS to forward unknown user authentication requests to a 3rd party RADIUS server?
Thanks
