diff --git a/radvd.init b/radvd.init
index d6962c3..ede373a 100644
--- a/radvd.init
+++ b/radvd.init
@@ -23,11 +23,22 @@
 . /etc/sysconfig/network
 
 # Check that networking is up.
-[ x${NETWORKING_IPV6} = "xyes" ] || exit 0
+if [ ! "${NETWORKING_IPV6}" = "yes" ]; then
+	echo "Networking IPv6 is disabled" 1>&2
+	exit 1
+fi
+
+if [ ! -f /etc/radvd.conf ]; then
+	echo "Configuration file /etc/radvd.conf missing" 1>&2
+	exit 6
+fi
 
 [ -f /etc/sysconfig/radvd ] && . /etc/sysconfig/radvd
 
-[ -f /usr/sbin/radvd ] || exit 0
+if [ ! -x /usr/sbin/radvd ]; then
+	echo "Insufficient privilege" 1>&2
+	exit 4
+fi
 
 RETVAL=0
 prog="radvd"
diff --git a/radvd.spec b/radvd.spec
index 7b32ad1..1218f7f 100644
--- a/radvd.spec
+++ b/radvd.spec
@@ -5,7 +5,7 @@
 Summary:    A Router Advertisement daemon
 Name:       radvd
 Version:    1.1
-Release:    3%{?dist}
+Release:    4%{?dist}
 # The code includes the advertising clause, so it's GPL-incompatible
 License:    BSD-style
 Group:      System Environment/Daemons
@@ -97,6 +97,9 @@ fi
 %{_sbindir}/radvdump
 
 %changelog
+* Mon Jun 23 2008 Jiri Skala <jskala@redhat.com> - 1.1-4
+- radvd.init LSB compliant
+
 * Fri Apr 11 2008 Martin Nagy <mnagy@redhat.com> - 1.1-3
 - remove stale pid file on start