The PPP NCP phase in the PPP link connection is mainly used to establish and assign different network layer protocols such as IP, IPX, or AppleTalk.
When an NCP is in the OPENED state, PPP will carry the corresponding network layer protocol Packets. When the corresponding NCP is not in the OPENED state, any received supported network layer protocol Packets will be eliminated.
At this stage, link traffic consists of any possible combination of LCP, NCP, and network layer protocol Packets.
The most universal third layer negotiation protocol is IP. The router swap IP Control Protocol (IPCP) information is subject to the specified protocol option. IPv6 The corresponding network control protocol is IPv6cp. For more information, please visit the following page: 中文 版: http://www.networkDictionary.com/chinese/protocols/pppncp.php English version: http://www.networkDictionary.com/protocols/pppncp.php
