You can restrict users that can dial in to your system. The name that you code for the GROUP definition statement in the NCP major node must match the GRPNM operand on the PATH definition statement in the switched major node. Therefore, the value that you code in the GRPNM operand on the PATH definition statement in the switched major node specifies the users in a group that can dial your system. Only the users in the group that you specify on the NCP major node can access your system.