142 lines
4.1 KiB
Groff
142 lines
4.1 KiB
Groff
.\" $NetBSD: slattach.8,v 1.27 2003/08/07 10:04:40 agc Exp $
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.\"
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.\" Copyright (c) 1986, 1991, 1993
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.\" The Regents of the University of California. 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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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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.\" @(#)slattach.8 8.2 (Berkeley) 4/1/94
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.\"
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.Dd September 3, 1999
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.Dt SLATTACH 8
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.Os
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.Sh NAME
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.Nm slattach ,
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.Nm slip
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.Nd attach serial lines as network interfaces
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.Sh SYNOPSIS
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.Nm
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.Op Fl Hhlmn
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.Op Fl s Ar baudrate
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.Op Fl t Ar ldisc
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.Ar ttyname
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.Sh DESCRIPTION
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.Nm
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is used to assign a tty line to a network interface,
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and to define the network source and destination addresses.
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The following operands are supported by
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.Nm :
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.Bl -tag -width Ar
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.It Fl H
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Turn on DTR/CTS flow control.
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By default, no flow control is done.
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.It Fl h
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Turn on RTS/CTS flow control.
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By default, no flow control is done.
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.It Fl l
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Turn on the CLOCAL flag, making it possible to run SLIP on a cable
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without modem control signals (e.g. DTR, DSR, DCD).
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.It Fl m
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Maintain modem control signals after closing the line.
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Specifically, this disables HUPCL.
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.It Fl n
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Don't detach from invoking tty.
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.It Fl s Ar baudrate
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Specifies the speed of the connection.
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If not specified, the default of 9600 is used.
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.It Fl t Ar ldisc
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Specifies the line discipline to use for the tty.
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Supported line disciplines are
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.Dq slip
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(creates a
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.Xr sl 4
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instance) and
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.Dq strip
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(creates a
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.Xr strip 4
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instance).
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If this option is not specified, the default is
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.Dq slip .
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.It Ar ttyname
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Specifies the name of the tty device.
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.Ar ttyname
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should be a string of the form
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.Ql ttyXX ,
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or
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.Ql /dev/ttyXX .
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.El
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.Pp
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In addition, the following flags to
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.Xr ifconfig 8
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control various properties of a SLIP link:
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.Bl -tag -width Ar
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.It Ar link0
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Turn on Van Jacobsen header compression.
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.It Ar -link0
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Turn off header compression.
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.It Ar link1
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Don't pass through ICMP packets.
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.It Ar -link1
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Do pass through ICMP packets.
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.It Ar link2
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If a packet with a compressed header is received, automatically enable
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compression of outgoing packets.
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.It Ar -link2
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Don't auto-enable compression.
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.El
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.Pp
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Only the super-user may attach a network interface.
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.Pp
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To detach the interface, use
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.Dq Li ifconfig interface-name down
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after killing off the
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.Nm
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process.
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.Ar Interface-name
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is the name that is shown by
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.Xr netstat 1 .
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.Sh EXAMPLES
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.Bd -literal -offset indent -compact
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slattach ttyh8
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slattach \-s 4800 /dev/tty01
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.Ed
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.Sh DIAGNOSTICS
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Messages indicating that the specified interface does not exist, the
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requested address is unknown, or that the user is not privileged but
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tried to alter an interface's configuration.
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.Sh SEE ALSO
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.Xr netstat 1 ,
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.Xr daemon 3 ,
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.Xr netintro 4 ,
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.Xr sl 4 ,
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.Xr strip 4 ,
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.Xr ifconfig 8 ,
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.Xr rc 8
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 4.3 .
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