diff --git a/doc/net.example.BSD.in b/doc/net.example.BSD.in
index 585f73d..dc6948c 100644
--- a/doc/net.example.BSD.in
+++ b/doc/net.example.BSD.in
@@ -399,6 +399,11 @@
 # to yes.
 #up_before_preup_IFVAR="NO"
 #up_before_preup="NO"
+#
+# You should note that we don't stop the network at system shutdown by default.
+# If you really need this, add a line like the following for the
+# interfaces you need to shut down:
+#rc_net_IFVAR_keyword="!-shutdown"
 
 #preup() {
 #	# Remember to return 0 on success
diff --git a/doc/net.example.Linux.in b/doc/net.example.Linux.in
index 666b44f..b527d39 100644
--- a/doc/net.example.Linux.in
+++ b/doc/net.example.Linux.in
@@ -1122,6 +1122,11 @@
 # to yes.
 #up_before_preup_IFVAR="NO"
 #up_before_preup="NO"
+#
+# You should note that we don't stop the network at system shutdown by default.
+# If you really need this, add a line like the following for the
+# interfaces you need to shut down:
+#rc_net_IFVAR_keyword="!-shutdown"
 
 #preup() {
 #	# Test for link on the interface prior to bringing it up.  This