In /etc/default/halt

NETDOWN=no

In /etc/init.d/halt nach netdown=““

        /usr/sbin/ethtool -s eth0 wol g
        if (grep LAN /proc/acpi/wakeup | grep disabled 2>&1 >> /dev/null) ; then
            echo -n LAN > /proc/acpi/wakeup
            log_action_msg "Activated ACPI LAN wakeup"
        fi