usr/src/etc/netstart

#!/bin/sh -
#
#       @(#)netstart    8.1 (Berkeley) 7/23/93

routedflags=-q
timedflags=YES
rwhod=NO

# myname is my symbolic name
# my-netmask is specified in /etc/networks
#
hostname=myname.my.domain
hostname $hostname

ifconfig ace0 inet $hostname netmask my-netmask
ifconfig  ex0 inet $hostname netmask my-netmask
ifconfig imp0 inet $hostname
ifconfig  le0 inet $hostname netmask my-netmask
ifconfig  ne0 inet $hostname netmask my-netmask
ifconfig  we0 inet $hostname netmask my-netmask

# For en ethernet interface, load microcode before ifconfig
# /etc/enpload /dev/enp0ram /etc/enpcode        > /dev/console 2>&1
ifconfig en0 inet $hostname netmask my-netmask

# set the address for the loopback interface
ifconfig lo0 inet localhost

# use loopback, not the wire
route add $hostname localhost