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PPP(4)			 BSD Kernel Interfaces Manual			PPP(4)

NAME
     ppp — point to point protocol network interface

SYNOPSIS
     options PPP_BSDCOMP
     options PPP_DEFLATE
     options PPP_FILTER

     pseudo-device ppp

DESCRIPTION
     The ppp interface allows serial lines to be used as network interfaces
     using the Point-to-Point Protocol (PPP).  The ppp interface can use vari‐
     ous types of compression and has many features over the SLIP protocol
     used by the sl(4) interface.

     Supported options are:
     options PPP_BSDCOMP   Enable support for BSD-compress (`bsdcomp') com‐
			   pression in ppp.
     options PPP_DEFLATE   Enable support for deflate compression in ppp.
     options PPP_FILTER	   This option turns on pcap(3) based filtering for
			   ppp connections.  This option is used by pppd(8)
			   which needs to be compiled with PPP_FILTER defined
			   (the current default).

DIAGNOSTICS
     ppp%d: af%d not supported .  The interface was handed a message with
     addresses formatted in an unsuitable address family; the packet was
     dropped.

SEE ALSO
     inet(4), intro(4), sl(4), pppd(8), pppstats(8)

     The Point-to-Point Protocol (PPP), RFC 1661, July 1994.

HISTORY
     The ppp device appeared in NetBSD 1.0.

BUGS
     Currently, only the ip(4) and ip6(4) protocols are supported.

BSD			       January 10, 2005				   BSD

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