diff --git a/ggsn/ippool.h b/ggsn/ippool.h
index 67a6f3e..46ba447 100644
--- a/ggsn/ippool.h
+++ b/ggsn/ippool.h
@@ -36,6 +36,7 @@
 #define IPPOOL_NONETWORK   0x01
 #define IPPOOL_NOBROADCAST 0x02
 #define IPPOOL_NOGATEWAY   0x04
+#define IPPOOL_NODESTADDR  0x08
 
 #define IPPOOL_STATSIZE 0x10000