Solstice PPP is a standard implementation of the following specifications:
RFC 1661 (updates RFC 1331) -- Point-to-Point Protocol (PPP)
Describes a standard method for transporting multiprotocol datagrams over serial point-to-point links.
RFC 1662 -- PPP in HDLC-like Framing
Describes the use of HDLC-like framing for PPP encapsulated packets.
RFC 1332 -- PPP Internet Protocol Control Protocol (IPCP)
Describes the Network Control Protocol (NCP) for establishing and configuring the Internet Protocol (IP) over PPP, and a method for negotiating the use of van jacobson TCP/IP header compression with PPP.
RFC 1334 -- PPP Authentication Protocols
Describes two protocols for user authentication in the PPP domain: the Password Authentication Protocol (PAP) and the Challenge-Handshake Authentication Protocol (CHAP).
RFC 1144 -- Compressing TCP/IP Headers for Low-Speed Serial Links
Describes a method to improve the performance of TCP/IP connections across low-speed links by compressing the packet headers.