This group includes the following conditions: called station ID, NAS identifier, NAS IP address, and NAS port type. The called ...

This group includes the following conditions: called station ID, NAS identifier, NAS IP address, and NAS port type. 

The called station ID condition restricts the policy to those requests coming from a specific is network access server's phone number. 

The NAS identifier condition restricts the policy to only those requests coming from a specific network access server's name.

The NAS IP address condition restricts the policy to only those  requests coming from a specific network access server's IP address.

The NAS port type condition restricts the policy to only those requests coming from a specific media type, such as Ethernet or Dial-Up.