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115 lines
3.0 KiB
Groff
115 lines
3.0 KiB
Groff
.\"
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.\" Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: i4bisppp.4,v 1.12 1999/12/13 22:11:55 hm Exp $
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.\"
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.\" $FreeBSD$
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.\"
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.\" last edit-date: [Mon Dec 13 23:11:15 1999]
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.\"
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.Dd December 22, 1998
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.Dt I4BISPPP 4
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.Os
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.Sh NAME
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.Nm i4bisppp
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.Nd isdn4bsd synchronous PPP over ISDN B-channel network driver
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.Sh FreeBSD SYNOPSIS
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.Cd pseudo-device \&"i4bisppp\&" Op count
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.Sh NetBSD SYNOPSIS
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none
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.Sh DESCRIPTION
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The
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.Nm
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driver interfaces the IP subsystem of the operating system with the
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isdn4bsd package so that a transport of IP packets over an ISDN link
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is possible.
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.Pp
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The driver is just a glue layer between Serge Vakulenko's sppp
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backend and the ISDN4BSD package.
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.Pp
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In case an IP packet for a remote side arrives in the driver and no
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connection is established yet, the driver communicates with the
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.Xr isdnd 8
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daemon to establish a connection.
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.Pp
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The driver has support for interfacing to the
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.Xr bpf 4
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subsystem for using
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.Xr tcpdump 1
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with the
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.Nm isp
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interfaces.
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.Pp
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The
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.Xr spppcontrol 8
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utility is used to configure all aspects of PPP required to connect to a
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remote site.
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.Sh LINK0 and LINK1
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The
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.Em link0
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and
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.Em link1
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flags given as parameters to
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.Xr ifconfig 8
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have the following meaning for the
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.Nm isp
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devices:
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.Bl -tag -width link0 -compact
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.Pp
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.It Li link0
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wait passively for connection
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.Pp
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.It Li link1
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auto-dial on output
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.El
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.Pp
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The
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.Em link0
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and
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.Em link1
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flags are set to
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.Em off
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by default.
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.Pp
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See
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.Xr sppp 4
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for a more detailed discussion of the flags,
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.Pp
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.Sh SEE ALSO
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.Xr isdnd 8
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.Xr isdnd.rc 5
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.Xr spppcontrol 8
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.Xr sppp 4
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.Xr bpf 4
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.Xr tcpdump 1
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.Sh AUTHOR
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The
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.Nm
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device driver was written by
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.An Joerg Wunsch
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and then added to ISDN4BSD by
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.An Gary Jennejohn .
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This manpage was written by
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.An Hellmuth Michaelis Aq hm@kts.org .
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