From b2bdb4065667f466575b831f4a3166bd309d9d14 Mon Sep 17 00:00:00 2001
From: Ondrej Filip <feela@network.cz>
Date: Sat, 11 Aug 2001 16:22:29 +0000
Subject: [PATCH] Changed definition of stub area.

---
 doc/bird.sgml       | 8 +++++---
 proto/ospf/config.Y | 2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/doc/bird.sgml b/doc/bird.sgml
index 762b5fd3..bab4679f 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1009,7 +1009,7 @@ on nonbroadcast networks.
 protocol ospf &lt;name&gt; {
 	rfc1583compat &lt;switch&gt;;
 	area &lt;id&gt; {
-		stub &lt;switch&gt;;
+		stub cost &lt;num&gt;;
 		tick &lt;num&gt;;
 		interface &lt;interface pattern&gt;
 		{
@@ -1047,8 +1047,10 @@ protocol ospf &lt;name&gt; {
 	 The most important area is
 	 the backbone (ID 0) to which every other area must be connected.
 
-	<tag>stub <M>switch</M></tag>
-	 No external routes are flooded into stub areas. Default value is no.
+	<tag>stub cost <M>num</M></tag>
+	 No external (except default) routes are flooded into stub areas.
+         Setting this value marks area stub with defined cost of default route.
+	 Default value is no. (Area is not stub.)
 
 	<tag>tick <M>num</M></tag>
 	 The routing table calculation is not performed when a single link state
diff --git a/proto/ospf/config.Y b/proto/ospf/config.Y
index 459a236c..140cbb44 100644
--- a/proto/ospf/config.Y
+++ b/proto/ospf/config.Y
@@ -70,7 +70,7 @@ ospf_area_opts:
  ;
 
 ospf_area_item:
-   STUB bool { this_area->stub = $2 ; }
+   STUB COST expr { this_area->stub = $3 ; if($3<=0) cf_error("Stub cost must be greater than zero"); }
  | TICK expr { this_area->tick = $2 ; if($2<=0) cf_error("Tick must be greater than zero"); }
  | INTERFACE ospf_iface_list
  ;