diff --git a/proto/ospf/dbdes.c b/proto/ospf/dbdes.c
index e74baa82..3c228508 100644
--- a/proto/ospf/dbdes.c
+++ b/proto/ospf/dbdes.c
@@ -235,6 +235,14 @@ ospf_rxmt_dbdes(struct ospf_proto *p, struct ospf_neighbor *n)
   ospf_do_send_dbdes(p, n);
 }
 
+void
+ospf_reset_ldd(struct ospf_proto *p UNUSED, struct ospf_neighbor *n)
+{
+  mb_free(n->ldd_buffer);
+  n->ldd_buffer = NULL;
+  n->ldd_bsize = 0;
+}
+
 static int
 ospf_process_dbdes(struct ospf_proto *p, struct ospf_packet *pkt, struct ospf_neighbor *n)
 {
@@ -433,6 +441,7 @@ ospf_receive_dbdes(struct ospf_packet *pkt, struct ospf_iface *ifa,
       if (!(n->myimms & DBDES_M) && !(n->imms & DBDES_M))
       {
 	tm_stop(n->dbdes_timer);
+	ospf_reset_ldd(p, n);
 	ospf_neigh_sm(n, INM_EXDONE);
 	break;
       }
@@ -456,7 +465,11 @@ ospf_receive_dbdes(struct ospf_packet *pkt, struct ospf_iface *ifa,
       ospf_send_dbdes(p, n);
 
       if (!(n->myimms & DBDES_M) && !(n->imms & DBDES_M))
+      {
+	/* Use dbdes timer to postpone freeing of Last DBDES packet buffer */
+	tm_start(n->dbdes_timer, n->ifa->deadint S);
 	ospf_neigh_sm(n, INM_EXDONE);
+      }
     }
     break;
 
diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index 9239894e..6d2f1fb2 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -610,6 +610,12 @@ dbdes_timer_hook(timer *t)
 
   if ((n->state == NEIGHBOR_EXCHANGE) && (n->myimms & DBDES_MS))
     ospf_rxmt_dbdes(p, n);
+
+  if ((n->state > NEIGHBOR_LOADING) && !(n->myimms & DBDES_MS))
+  {
+    ospf_reset_ldd(p, n);
+    tm_stop(n->dbdes_timer);
+  }
 }
 
 static void
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 35fd6672..6a20300e 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -989,6 +989,7 @@ void ospf_receive_hello(struct ospf_packet *pkt, struct ospf_iface *ifa, struct
 /* dbdes.c */
 void ospf_send_dbdes(struct ospf_proto *p, struct ospf_neighbor *n);
 void ospf_rxmt_dbdes(struct ospf_proto *p, struct ospf_neighbor *n);
+void ospf_reset_ldd(struct ospf_proto *p, struct ospf_neighbor *n);
 void ospf_receive_dbdes(struct ospf_packet *pkt, struct ospf_iface *ifa, struct ospf_neighbor *n);
 
 /* lsreq.c */