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PPP Standards
(Page 2 of 3)
Base PPP Standards
Table 25 shows the “main” documents that describe PPP in general terms. They cover the basic operation of PPP including the PPP Link Control Protocol (LCP) and encapsulation of datagrams.
RFC Number |
Standard Name |
Description |
1570 |
PPP LCP Extensions |
Defines two new features for LCP that allow devices to identify each other to the other device and also tell the other device how much time remains in the current session. |
1661 |
The Point-to-Point Protocol (PPP) |
Base standard for the Point-to-Point protocol. Describes PPP architecture, general operation (including the process of link establishment, maintenance and termination) and details of the LCP protocol. |
1662 |
PPP in HDLC-like Framing |
Defines the specific framing method for PPP frames, based on that used in HDLC. This standard can be considered a “companion” to the main PPP standard, RFC 1661. |
These protocols, shown in Table 26, support the basic operation of LCP. At this time the only protocols I put in this group are those that provide authentication services during link startup.
RFC Number |
Standard Name |
Description |
1334 |
PPP Authentication Protocols |
Defines the two PPP authentication
protocols: Password Authentication Protocol (PAP) and Challenge Handshake
Authentication Protocol (CHAP). |
1994 |
PPP Challenge Handshake Authentication Protocol (CHAP) |
Updates the information about CHAP provided in RFC 1334. |
These are protocols that negotiate parameters specific to various layer three protocols carried over PPP. They are described in Table 27.
RFC Number |
Standard Name |
Description |
1332 |
The PPP Internet Protocol Control Protocol (IPCP) |
The NCP for the Internet Protocol (IP). |
1377 |
The PPP OSI Network Layer Control Protocol (OSINLCP) |
The NCP for OSI protocol suite network layer protocols, such as CNLP, ES-IS, and IS-IS. |
1378 |
The PPP AppleTalk Control Protocol (ATCP) |
The NCP for the AppleTalk protocol. |
1552 |
The PPP Internetworking Packet Exchange Control Protocol (IPXCP) |
The NCP for the Novell Internetworking Packet Exchange (IPX) protocol. |
2043 |
The PPP SNA Control Protocol (SNACP) |
The NCP for IBM's Systems Network Architecture (SNA). |
2097 |
The PPP NetBIOS Frames Control Protocol (NBFCP) |
The NCP for NetBIOS Frames (NBF, also commonly called NetBEUI). |
2472 |
IP Version 6 over PPP |
Describes the NCP for IPv6: the IPv6 Control Protocol (IPv6CP). |
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