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NetBSD 6.1.5 - man page for slattach (netbsd section 8)

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

     slattach -- attach serial lines as network interfaces

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

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

     Currently the slattach command is used to attach sl(4) or strip(4) interfaces.  These inter-
     faces have to be created using the ifconfig(8) create subcommand before the slattach com-
     mand.  The network source and destination addresses and other interface parameters are con-
     figured 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.  Supported line disciplines
		   are ``slip'' (creates a sl(4) instance) 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).

	   slattach ttyh8
	   slattach -s 4800 /dev/tty01

     Messages indicating that the specified interface is not configured or created, the requested
     address is unknown, or that the user is not privileged but tried to alter an interface's

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

     The slattach command appeared in 4.3BSD.

     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 assigned 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

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