Trusted and Un-trusted Networks
Trusted NetworkComputers on the trusted network can transparently access the services which are usually administered by the administrators to ensure that private and secured data is not leaked. Access to this network is limited to machines administered by the Administrator in order to secure sensitive data and maintain the availability of the resources. Users should not attempt to connect their personal machines to this network. Trusted Network Connect or TNC is an open architecture for Network Access Control, promulgated by the Trusted Network Connect Work Group
Un-trusted Network
In most cases, computers on the un-trusted network are controlled and configured by their owners. Since this could potentially allow improper access to sensitive or personal data, or could cause operational disruptions to the production computer network, these machines are isolated on a separate sub-net, and are not given direct access to many core computer resources
