#!/bin/sh start() { echo 1 > /proc/sys/net/ipv6/conf/$IFACE/accept_ra } stop() { echo 0 > /proc/sys/net/ipv6/conf/$IFACE/accept_ra } [ -z "$VERBOSE" ] || set -x case "$PHASE" in up) start $impl ;; down) stop $impl ;; *) ;; esac