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SLATTACH(8)		  BSD System Manager's Manual		   SLATTACH(8)

NAME
     slattach -- attach	serial lines as	network	interfaces

SYNOPSIS
     slattach [-Hhlmn] [-s baudrate] [-t ldisc]	ttyname

DESCRIPTION
     slattach is used to assign	a tty line to a	network	interface which	uses
     asynchronous serial lines.

     Currently the slattach command is used to attach sl(4) or strip(4)	inter-
     faces.  These interfaces have to be created using the ifconfig(8) create
     subcommand	before the slattach command.  The network source and destina-
     tion addresses and	other interface	parameters are configured via
     ifconfig(8).

     The following operands are	supported by slattach:

     -H		   Turn	on DTR/CTS flow	control.  By default, no flow control
		   is done.

     -h		   Turn	on RTS/CTS flow	control.  By default, no flow control
		   is done.

     -l		   Turn	on the CLOCAL flag, making it possible to run SLIP on
		   a cable without modem control signals (e.g. DTR, DSR, DCD).

     -m		   Maintain modem control signals after	closing	the line.
		   Specifically, this disables HUPCL.

     -n		   Don't detach	from invoking tty.

     -s	baudrate   Specifies the speed of the connection.  If not specified,
		   the default of 9600 is used.

     -t	ldisc	   Specifies the line discipline to use	for the	tty.  Sup-
		   ported line disciplines are "slip" (creates a sl(4) in-
		   stance) and "strip" (creates	a strip(4) instance).  If this
		   option is not specified, the	default	is "slip".

     ttyname	   Specifies the name of the tty device.  ttyname should be a
		   string of the form `ttyXX', or `/dev/ttyXX'.

     Only the super-user may attach a network interface.

     To	detach the interface, use "ifconfig interface-name down" after killing
     off the slattach process.	Interface-name is the name that	is shown by
     netstat(1).

EXAMPLES
	   slattach ttyh8
	   slattach -s 4800 /dev/tty01

DIAGNOSTICS
     Messages indicating that the specified interface is not configured	or
     created, the requested address is unknown,	or that	the user is not	privi-
     leged but tried to	alter an interface's configuration.

SEE ALSO
     netstat(1), daemon(3), netintro(4), sl(4),	strip(4), ifconfig(8), rc(8),
     sliplogin(8), slstats(8)

HISTORY
     The slattach command appeared in 4.3BSD.

BUGS
     There is no way to	specify	the interface name (sl%d etc.) to be attached
     by	the slattach command.  There is	no way to see which interface is as-
     signed to the specified tty by the	slattach command, either.

     It	would be better	if the network interfaces were created by the slattach
     command rather than by using the ifconfig(8) create subcommand before the
     slattach command.

BSD				 July 8, 2006				   BSD

NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | DIAGNOSTICS | SEE ALSO | HISTORY | BUGS

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