--- a/src/devices/emu/emu-net-device.cc	Wed Dec 02 16:22:37 2009 -0800
+++ b/src/devices/emu/emu-net-device.cc	Thu Dec 03 10:54:05 2009 +0300
@@ -718,6 +718,7 @@
 
     default:
       NS_FATAL_ERROR ("invalid encapsulation mode");
+      protocol = 0; /* quiet compiler */
     }
 
   PacketType packetType;