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) interfaces. These interfaces have to be created using the
ifconfig(8) create subcommand before the
slattach command. The network source and destination 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. 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).