I have configured
Routing and Remote Access Service in Windows Server 2003 as the VPN server. VPN users are defined in Active Directory which is running on this server too.
How i can configure the server to give each user a limited download size (for example 1GB) and does not authenticate them when they exceeds their download quota.
The VPN server should also disconnect the users that reach their quota.
Update: Apparently a third-party RADIUS server could provide this feature. One solution I have found is TekRADIUS but it is commercial. FreeRADIUS is a open-source free RADIUS server but I am not sure if it could these kind of features.