Fix numbering of routing tables in IPv6 version.

sysdep/linux/netlink/krt-scan.h

@@ -15,11 +15,7 @@
  *  to krt-set.h, krt-iface.h and this file.
  */
 
-#ifdef IPV6
-#define NL_NUM_TABLES 1
-#else
 #define NL_NUM_TABLES 256
-#endif
 
 struct krt_scan_params {
   int table_id;				/* Kernel table ID we sync with */

sysdep/linux/netlink/netlink.Y

@@ -18,8 +18,13 @@ CF_ADDTO(kern_proto, kern_proto nl_item ';')
 
 nl_item:
    KERNEL TABLE expr {
+#ifndef IPV6
 	if ($3 <= 0 || $3 >= NL_NUM_TABLES)
 	  cf_error("Kernel routing table number out of range");
+#else
+	if ($3 != 254)
+	  cf_error("Linux implementation of IPv6 doesn't support multiple routing tables");
+#endif
 	THIS_KRT->scan.table_id = $3;
    }
  ;