NAME    [Toc]    [Back]

     netstart - command scripts for network startup

SYNOPSIS    [Toc]    [Back]

     /etc/netstart [interface ...]

DESCRIPTION    [Toc]    [Back]

     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 /etc/rc.conf, which specifies which daemons
and services
     are to be run.

     During the system boot, netstart is executed.  netstart will
perform the
     following operations:

     +o   Set the machine's name.
     +o   Configure the loopback interface.
     +o   Configure all the physical interfaces.
     +o    Initialize  the  routing  table  and set up the default
routes.
     +o   Configure all the gif(4) and gre(4) interfaces.
     +o   Configure all the bridges.

     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

           sh /etc/netstart foo0

     where foo0 is the interface or bridge name.

MULTICAST ROUTING    [Toc]    [Back]

     Routing to the 224.0.0.0/4 net is set up using  values  from
/etc/rc.conf
     according to these rules:

     +o   If the multicast settings are as follows:

               multicast_host=NO
               multicast_router=NO

         then multicast routing will not be enabled.

     +o   If the multicast settings are as follows:

               multicast_host=NO
               multicast_router=YES

         then multicast routing will be enabled, but no multicast
route will
         be set up.  It is expected that a routing  daemon,  such
as mrouted(8),
         will be started as well.

     +o   If the multicast settings are as follows:

               multicast_host=YES
               multicast_router=NO
         or:
               multicast_host=foo0     # interface name
               multicast_router=NO

         then  multicast  routing  will be enabled, using the default interface,
         or the interface name specified by multicast_host.

     +o   Other cases are configuration errors and will cause multicast routing
         not to be enabled.

SEE ALSO    [Toc]    [Back]

     bridge(4),   gif(4),  gre(4),  bridgename.if(5),  defaultdomain(5),
     hostname.if(5), mygate(5), myname(5),  dhcp(8),  mrouted(8),
rc(8),
     rc.conf(8)

HISTORY    [Toc]    [Back]

     The netstart command appeared in 4.0BSD.

OpenBSD      3.6                        February     20,     2002