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Supported PPP Interface Standards

Junos OS substantially supports the following RFCs, which define standards for Point-to-Point Protocol (PPP) interfaces.

  • RFC 1332, The PPP Internet Protocol Control Protocol (IPCP)

  • RFC 1334, PPP Authentication Protocols

  • RFC 1661, The Point-to-Point Protocol (PPP)

  • RFC 1662, PPP in HDLC-like Framing

  • RFC 1989, PPP Link Quality Monitoring

  • RFC 1990, The PPP Multilink Protocol (MP)

  • RFC 2364, PPP Over AAL5

  • RFC 2615, PPP over SONET/SDH

  • RFC 2686, The Multi-Class Extension to Multi-Link PPP

    The following features are not supported:

    • Negotiation of address field compression and protocol field compression PPP NCP options; instead, a full 4-byte PPP header is always sent

    • Prefix elision

  • RFC 3021, Using 31-Bit Prefixes on IPv4 Point-to-Point Links

The following RFCs do not define standards, but provide information about PPP. The IETF classifies them as “Informational.”

  • RFC 1877, PPP Internet Protocol Control Protocol Extensions for Name Server Addresses

  • RFC 2153, PPP Vendor Extensions