#!/bin/sh

IFACE="vlan0"

VLAN="1"
VLANDEV="em0"

OPTS=""
#IP="auto"
IP="192.168.0.1/24"
ALIASES=""
#IP6="auto"
IP6=""
ALIASES6=""

[ -z "$IFACE" -o -z "$VLANDEV" ] && exit

echo "Config VLAN #$VLAN network interface $IFACE ..."

ifconfig $IFACE create vlan $VLAN vlandev $VLANDEV || exit
if [ -n "$IP" ]; then
	if [ "$IP" = "auto" ]; then
		dhclient $IFACE
	else
		ifconfig $IFACE inet $IP
	fi
fi
for i in $ALIASES; do
	ifconfig $IFACE inet alias $i
done
if [ -n "$IP6" ]; then
	if [ "$IP" = "auto" ]; then
		ifconfig $IFACE accept_rtadv
	else
		ifconfig $IFACE inet6 $IP6
	fi
fi
for i in $ALIASES6; do
	ifconfig $IFACE inet6 alias $i
done
ifconfig $IFACE $OPTS up