1#!/bin/bash 2 3if [ "$1" == "on" ] 4then 5# gateway=$(route -n | grep 'UG[ \t]' | awk '{print $2}') 6# interface = $(route -n | grep 'UG[ \t]' | awk '{print $8}') 7 sudo /sbin/route del default 8 sudo /sbin/dhclient wan0 9elif [ "$1" == "off" ] 10then 11# gateway=$(route -n | grep 'UG[ \t]' | awk '{print $2}') 12# interface = $(route -n | grep 'UG[ \t]' | awk '{print $8}') 13 sudo /sbin/route del default 14 sudo /sbin/ifconfig wan0 0.0.0.0 15 sudo /sbin/dhclient 16elif [ "$1" == "open" ] 17then 18 sudo /sbin/ifconfig wan0 up 19fi 20exit 0 21