I have some users with Windows 2000 that dial in an access server Cisco 2620. But i see that some other people connect to my company network. I've changes several times the passwords of my clients but it seems that somehow they are stolen again. So i want to implement IPSec with a preshared key on Windows 2000 and Cisco access server. I use AAA method with Tacacs. I've configured Windows 2000 with a preshared key. I want to do it now on Cisco access server (i use a pool of dymanic IP addresses on RAS).
What should i do on the Access server
Any help or idea would be deeply appreciated.
Gentian