MirBSD manpage: ppp(4)
PPP(4) BSD Programmer's Manual PPP(4)
ppp - point to point protocol network interface
pseudo-device ppp [count]
The ppp interface allows serial lines to be used as network interfaces
using the Point-to-Point Protocol (PPP).
A ppp interface can be created at runtime using the ifconfig pppN create
command or by setting up a hostname.if(5) configuration file for
netstart(8).
The ppp interface can use various types of compression and has many
features over the SLIP protocol used by the sl(4) interface.
ppp%d: af%d not supported The interface was handed a message with ad-
dresses formatted in an unsuitable address family; the packet was
dropped.
inet(4), sl(4), pppd(8), pppstats(8)
The Point-to-Point Protocol (PPP), RFC 1661, July 1994.
The ppp device appeared in OpenBSD 1.2.
Currently, only the ip(4) protocol is supported.
MirBSD #10-current August 10, 1996 1