diff --git a/Samples/two-interfaces/interfaces b/Samples/two-interfaces/interfaces
index 587d32924..e2b7aea8a 100755
--- a/Samples/two-interfaces/interfaces
+++ b/Samples/two-interfaces/interfaces
@@ -120,5 +120,6 @@
 #			net	ppp0	-		noping
 ##############################################################################
 #ZONE	 INTERFACE	BROADCAST	OPTIONS
+net	eth0		detect		dhcp,routefilter,norfc1918
 loc	eth1		detect		routestopped
 #LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE