Applies To: Windows Server 2008, Windows Server 2008 R2
Constraints are additional network policy parameters that are optional. Constraints differ from network policy conditions in one substantial way: when a condition does not match a connection request, NPS continues to evaluate other configured network policies in search of a match for the connection request, but when a constraint does not match a connection request, NPS does not evaluate additional network policies; NPS rejects the connection request and the user or computer is denied network access.
Following are the constraints that you can configure in a network policy:
Allows you to specify the authentication methods that are required for the connection request to match the network policy.
Allows you to specify the maximum time, in minutes, that the network access server can remain idle before the connection is disconnected.
Allows you to specify the maximum amount of time, in minutes, that a user can be connected to the network.
Called station ID
Allows you to specify the telephone number of the dial-up server that clients are allowed to use to access the network.
Day and time restrictions
Allows you to specify when users are allowed to connect to the network.
NAS port type
Allows you to specify the access media types that are allowed for users to connect to the network.