Supported Standards for PPP Interfaces

The JUNOS software substantially supports the following Point-to-Point Protocol (PPP) standards:

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 1717, The PPP Multilink Protocol (MP) (see also RFC 1990)
RFC 1877, PPP Internet Protocol Control Protocol Extensions for Name Server Addresses
RFC 1989, PPP Link Quality Monitoring
RFC 1990, The PPP Multilink Protocol (MP) (see also RFC 1717)
RFC 2153, PPP Vendor Extensions
RFC 2364, PPP Over AAL5
RFC 2615, PPP over SONET/SDH
RFC 2686, The Multi-Class Extension to Multi-Link PPP
The following restrictions apply:
- Prefix elision is not supported.
- The JUNOS implementation of PPP does not support the negotiation of address field compression and protocol field compression PPP NCP options. A full 4-byte PPP header is always sent.