slattach(8)
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SLATTACH(8) NetBSD System Manager's Manual SLATTACH(8)
NAME
slattach, slip - attach serial lines as network interfaces
SYNOPSIS
slattach [-t ldisc] [-hHlm] [-s baudrate] ttyname
DESCRIPTION
slattach is used to assign a tty line to a network interface, and to de-
fine the network source and destination addresses. The following
operands are supported by slattach:
-h Turn on RTS/CTS flow control. By default, no flow control
is done.
-H Turn on DTR/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.
-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. Support-
ed line disciplines are ``slip'' (creates a sl(4) instance)
and ``strip'' (creates a strip(4) instance). If this op-
tion 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'.
In addition, the following flags to ifconfig(8) control various proper-
ties of a SLIP link:
link0 Turn on Van Jacobsen header compression.
-link0 Turn off header compression.
link1 Don't pass through ICMP packets.
-link1 Do pass through ICMP packets.
link2 If a packet with a compressed header is received, automati-
cally enable compression of outgoing packets.
-link2 Don't auto-enable compression.
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 the specified interface does not exit, the requested
address is unknown, the user is not privileged and tried to alter an in-
terface's configuration.
SEE ALSO
netstat(1), netintro(4), sl(4), strip(4), ifconfig(8), rc(8)
HISTORY
The slattach command appeared in 4.3BSD.
4.3 Berkeley Distribution April 1, 1994 2
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