1.\" $OpenBSD: pppx.4,v 1.5 2020/01/23 00:31:40 dlg Exp $ 2.\" 3.\" Copyright (c) 2013 YASUOKA Masahiko <yasuoka@yasuoka.net> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: January 23 2020 $ 18.Dt PPPX 4 19.Os 20.Sh NAME 21.Nm pppx , 22.Nm pppac 23.Nd PPP multiplexer device 24.Sh SYNOPSIS 25.Cd "pseudo-device pppx" 26.Pp 27.In sys/socket.h 28.In sys/ioctl.h 29.In net/pipex.h 30.Sh DESCRIPTION 31The 32.Nm pppx 33and 34.Nm pppac 35drivers works with the 36.Xr npppd 8 37daemon to provide network interfaces for Point-to-Point Protocol (PPP) 38sessions by request from the daemon. 39.Nm pppx 40operates by allocating a network interface for each PPP 41session. 42.Nm pppac 43concentrates multiple PPP sessions on a single network interface. 44The interfaces also work with 45.Xr pipex 4 46to accelerate the performance of data packet forwarding, 47and supports ioctls which are added by 48.Xr pipex 4 . 49.Pp 50To use 51.Nm pppx 52or 53.Nm pppac 54from 55.Xr npppd 8 56the administrator needs to configure the interface configuration in 57.Xr npppd.conf 5 . 58Also the administrator needs to enable 59.Xr pipex 4 60by setting 61.Va net.pipex.enable 62to 63.Sq 1 64using 65.Xr sysctl 8 . 66.Sh SEE ALSO 67.Xr inet 4 , 68.Xr inet6 4 , 69.Xr pipex 4 , 70.Xr hostname.if 5 , 71.Xr npppd.conf 5 , 72.Xr netstart 8 , 73.Xr npppd 8 , 74.Xr sysctl 8 75.Sh HISTORY 76The 77.Nm pppx 78driver first appeared in 79.Ox 5.3 . 80The 81.Nm pppac 82interface driver first appeared in 83.Ox 6.7 . 84.Sh AUTHORS 85.An David Gwynne Aq Mt dlg@openbsd.org 86.An Claudio Jeker Aq Mt claudio@openbsd.org 87