udhcpc용 default.script

#!/bin/sh
# Sample udhcpc renew script

RESOLV_CONF="/etc/resolv.conf"

[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
[ -n "$subnet" ] && NETMASK="netmask $subnet"

/sbin/ifconfig $interface $ip $BROADCAST $NETMASK

if [ -n "$router" ]
then
        echo "deleting routers"
        while /sbin/route del default gw 0.0.0.0 dev $interface
        do :
        done

        metric=0
        for i in $router
        do
                /sbin/route add default gw $i dev $interface metric $((metric++))
        done
fi

echo -n > $RESOLV_CONF
[ -n "$domain" ] && echo domain $domain >> $RESOLV_CONF
for i in $dns
do
        echo adding dns $i
        echo nameserver $i >> $RESOLV_CONF
done

작성 후 실행 권한을 주어야한다.
실행 명령
# udhcpc -i eth0 -s /usr/share/udhcpc/default.script

백그라운드로 3회 재시도 후 종료
# uchcpc -i eth0 -s /usr/share/udhcpc/default.script -nq -t 3