Bug in next-hop calculation fixed. (For dual connected neighbors.)

1 files changed, 13 insertions, 4 deletions

diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index d22a60e..ca92e9d 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -432,16 +432,25 @@ find_neigh(struct ospf_iface *ifa, u32 rid)
   return NULL;
 }
 
+
+/* Find a closest neighbor which is at leas 2-Way */
 struct ospf_neighbor *
 find_neigh_noifa(struct proto_ospf *po, u32 rid)
 {
-  struct ospf_neighbor *n;
+  struct ospf_neighbor *n=NULL,*m;
   struct ospf_iface *ifa;
 
   WALK_LIST (ifa, po->iface_list)
-    if((n=find_neigh(ifa, rid))!=NULL)
-      return n;
-  return NULL;
+    if((m=find_neigh(ifa, rid))!=NULL)
+    {
+      if(m->state>=NEIGHBOR_2WAY)
+      {
+        if(n==NULL) n=m;
+        else
+          if(m->ifa->cost < n->ifa->cost) n=m;
+      }
+    }
+  return n;
 }
 
 struct ospf_area *