Network Control Protocol
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This article is about protocols running atop the Point-to-Point Protocol for negotiating network layer protocol options. For the ARPANET NCP, see Network Control Program.
A Network Control Protocol is a protocol that runs atop the Point-to-Point Protocol (PPP) and that is used to negotiate options for a network layer protocol running atop PPP. Network Control Protocols include the Internet Protocol Control Protocol for the Internet Protocol, the Internetwork Packet Exchange Control Protocol for the Internet Packet Exchange protocol, and the AppleTalk Control Protocol for AppleTalk.