netstart —
command script for network startup
| /etc/netstart |
[interface
...] |
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
To enable
multicast(4) routing,
the
net.inet.ip.mforwarding and/or
net.inet6.ip6.mforwarding
sysctl(8) variables should be
set to 1. Multicast routing is only enabled if
multicast is set to “YES” in
rc.conf.local(8). Other
cases are configuration errors and will cause multicast routing not to be
enabled.
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}