SLATTACH(8) | 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 lines.
Currently the slattach
command is used to
attach sl(4) interfaces. These
interfaces have to be created using the
ifconfig(8). The resulting
point-to-point link is not a broadcast interface and normally has a netmask
of 255.255.255.255. 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
-h
-l
-m
-n
-s
baudrate-t
ldiscttyXX
’, 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).
Lock, initialize, and attach a line (on both sides):
cu -t -F [hard|soft] -l /dev/dty00 ifconfig sl0 create slattach -l -t slip /dev/dty00
ifconfig sl0 inet 10.0.0.2 10.0.0.1 netmask 255.255.255.255
ifconfig sl0 inet 10.0.0.1 10.0.0.2 netmask 255.255.255.255
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 configuration.
netstat(1), daemon(3), netintro(4), sl(4), ifconfig(8), rc(8), sliplogin(8), slstats(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.
January 18, 2020 | NetBSD 10.99 |