Term:Intranet

GAO-09-232G

Intranet - A private network that uses the infrastructure and standards of the Internet and World Wide Web, but is isolated from the public Internet by firewall barriers.

NIST SP 800-41

Intranet - An intranet is a network internal to an organization but that runs the same protocols as the network external to the organization. Every organizational network that runs the TCP/IP protocol suite is an intranet.