slattach - attach a network interface to a serial line
slattach [-dehlLmnqv] [-c command] [-p proto] [-s speed] [tty]
is a tiny little program that can be used to put a normal
terminal ("serial") line into one of several "network"
modes, thus allowing you to use it for point-to-point links to other
- Path to a serial device like /dev/ttyS*,
/dev/cua* or /dev/ptmx to spawn a new pseudo tty.
- [-c command]
- Execute command when the line is hung up. This can
be used to run scripts or re-establish connections when a link goes
- Enable debugging output. Useful when determining why a
given setup doesn't work.
- Exit when the carrier is lost. This works on both /dev/tty
and /dev/cua devices by directly monitoring the carrier status every 15
- Enable verbose output. Useful in shell scripts.
- Operate in quiet mode - no messages at all.
- Create an UUCP-style lockfile for the device in
- Equivalent to the "mesg n" command.
- Do not initialize the line into 8 bits raw
- Exit right after initializing device, instead of waiting
for the line to hang up.
- Enable 3 wire operation. The terminal is moved into CLOCAL
mode, carrier watching is disabled.
- [-p proto]
- Set a specific kind of protocol to use on the line. The
default is set to cslip, i.e. compressed SLIP. Other possible
values are slip (normal SLIP), adaptive (adaptive
CSLIP/SLIP), ppp (Point-to-Point Protocol) and kiss (a
protocol used for communicating with AX.25 packet radio terminal node
controllers). The special argument tty can be used to put the
device back into normal serial operation. Using 'ppp' mode is not normally
useful as ppp requires an additional ppp daemon pppd to be active
on the line. For kiss connections the axattach program should be
- [-s speed]
- Set a specific line speed, other than the default.
If no arguments are given, the current terminal line (usually: the login device)
is used. Otherwise, an attempt is made to claim the indicated terminal port,
lock it, and open it.
/dev/cua* /var/lock/LCK.* /dev/ttyS* /dev/ptmx
axattach(8), dip(8) pppd(8), sliplogin(8).
Fred N. van Kempen, <email@example.com>
Alan Cox, <Alan.Cox@linux.org>
Miquel van Smoorenburg, <firstname.lastname@example.org>
George Shearer, <email@example.com>
Yossi Gottlieb, <firstname.lastname@example.org>