diff --git a/libnetutil/netutil.cc b/libnetutil/netutil.cc
index b85210fc2..a3257595a 100644
--- a/libnetutil/netutil.cc
+++ b/libnetutil/netutil.cc
@@ -420,6 +420,7 @@ int ip_is_reserved(struct in_addr *ip)
     case 39:        /* 039/8 is IANA reserved       */
     case 55:        /* misc. U.S.A. Armed forces    */
     case 100:       /* 100/8 is IANA reserved       */
+    case 106:       /* 106/8 is IANA reserved       */
     case 127:       /* 127/8 is reserved for loopback */
     case 179:       /* 179/8 is IANA reserved       */
     case 185:       /* 185/8 is IANA reserved       */
@@ -428,8 +429,8 @@ int ip_is_reserved(struct in_addr *ip)
       break;
     }
 
-  /* 102-106/8 is IANA reserved */
-  if (i1 >= 102 && i1 <= 106)
+  /* 102-104/8 is IANA reserved */
+  if (i1 >= 102 && i1 <= 104)
     return 1;
 
   /* 172.16.0.0/12 is reserved for private nets by RFC1819 */