--- iputils-s20150815/ping.h
+++ iputils-s20150815/ping.h
@@ -61,7 +61,7 @@
 
 #define	MAXWAIT		10		/* max seconds to wait for response */
 #define MININTERVAL	10		/* Minimal interpacket gap */
-#define MINUSERINTERVAL	200		/* Minimal allowed interval for non-root */
+#define MINUSERINTERVAL	0		/* Minimal allowed interval for non-root */
 
 #define SCHINT(a)	(((a) <= MININTERVAL) ? MININTERVAL : (a))