netstart —
command script for network startup
netstart is the command script that is
invoked by
rc(8) during an automatic
reboot and after single-user mode is exited; it performs network
initialization.
The
netstart script can also be used to start
newly created bridges or interfaces, or reset existing interfaces to their
default state. The behaviour of this script is (or can be) controlled to some
extent by variables defined in
rc.conf(8), which specifies
which daemons and services are to be run.
During the system boot,
netstart is executed.
netstart performs the following operations,
in the sequence given:
- Set the machine's name.
- Configure the loopback interface.
- Configure all the physical interfaces.
- Configure the following non-physical interfaces:
trunk(4),
vlan(4),
pfsync(4), and
carp(4).
- Initialize the routing table and set up the default routes.
- Configure the remaining non-physical interfaces:
pppoe(4),
gif(4), and
gre(4).
- Configure all bridge(4)
interfaces.
After the system is completely initialized, it is possible to start a newly
created interface or
bridge(4),
or reset an existing interface to its default state, by invoking the
following, where
foo0 is the interface or
bridge name:
# sh /etc/netstart foo0
Using the
-n option reports the steps that
would be taken, without actually configuring the interface.
multicast(4),
defaultdomain(5),
hostname.if(5),
myname(5),
ifconfig(8),
rc(8),
rc.conf(8)
The
netstart command first appeared in
4.0BSD.
![[OpenBSD]](/openbsd.gif){kind=small}