ppp(4) - NetBSD Manual Pages

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PPP(4)                  NetBSD 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.

NetBSD 5.1                     January 10, 2005                     NetBSD 5.1