diff -Nabur --exclude-from=exclude_files ospfd1.10/src/ospf.h ospfd1.11/src/ospf.h
--- ospfd1.10/src/ospf.h	Mon Jun 26 17:54:48 2000
+++ ospfd1.11/src/ospf.h	Wed Aug 23 16:09:52 2000
@@ -258,7 +258,7 @@
     // Version numbers
     enum {
 	vmajor = 1,	// Major version number
-	vminor = 10,	// Minor version number
+	vminor = 11,	// Minor version number
     };
 
     // Entry points into the OSPF code
diff -Nabur --exclude-from=exclude_files ospfd1.10/src/spfifc.C ospfd1.11/src/spfifc.C
--- ospfd1.10/src/spfifc.C	Mon Jun 26 17:54:48 2000
+++ ospfd1.11/src/spfifc.C	Wed Aug 23 16:09:52 2000
@@ -129,6 +129,9 @@
 	nbr_change = true;
     }
     // Interface cost
+    // First verify cost
+    if (m->if_cost == 0)
+        m->if_cost = 1;
     if (ip->if_cost != m->if_cost) {
 	ip->if_cost = m->if_cost;
 	new_lsa = true;

.