Index: sys/netinet/in_pcb.c
===================================================================
--- sys/netinet/in_pcb.c
+++ sys/netinet/in_pcb.c
@@ -57,6 +57,7 @@
 #include <sys/eventhandler.h>
 #include <sys/domain.h>
 #include <sys/protosw.h>
+#include <sys/random.h>
 #include <sys/rmlock.h>
 #include <sys/smp.h>
 #include <sys/socket.h>
@@ -637,11 +638,13 @@
 	 * For UDP(-Lite), use random port allocation as long as the user
 	 * allows it.  For TCP (and as of yet unknown) connections,
 	 * use random port allocation only if the user allows it AND
-	 * ipport_tick() allows it.
+	 * ipport_tick() allows it.  Finally, if the random device is not yet
+	 * available, don't try to draw a random number.
 	 */
 	if (V_ipport_randomized &&
 		(!V_ipport_stoprandom || pcbinfo == &V_udbinfo ||
-		pcbinfo == &V_ulitecbinfo))
+		pcbinfo == &V_ulitecbinfo) &&
+		is_random_seeded())
 		dorandom = 1;
 	else
 		dorandom = 0;