Send multihop requests when losing a route.

route.c

@@ -459,9 +459,15 @@ send_triggered_update(struct route *route, struct source *oldsrc, int oldmetric)
         send_update(NULL, urgent, route->src->prefix, route->src->plen);
 
     if(oldmetric < INFINITY) {
-        if(newmetric >= INFINITY || newmetric >= oldmetric + 384)
+        if(newmetric >= INFINITY)
             send_request(NULL, route->src->prefix, route->src->plen,
                          0, 0, 0);
+        else if(newmetric >= oldmetric + 384)
+            send_request(NULL, route->src->prefix, route->src->plen,
+                         127,
+                         route->src->metric >= INFINITY ?
+                         route->src->seqno : seqno_plus(route->src->seqno, 1),
+                         hash_id(route->src->address));
     }
 }
 
@@ -504,7 +510,10 @@ route_lost(struct source *src, int oldmetric)
         /* Complain loudly. */
         send_update(NULL, 1, src->prefix, src->plen);
         if(oldmetric < INFINITY)
-            send_request(NULL, src->prefix, src->plen, 0, 0, 0);
+            send_request(NULL, src->prefix, src->plen, 127,
+                         src->metric >= INFINITY ?
+                         src->seqno : seqno_plus(src->seqno, 1),
+                         hash_id(src->address));
     }
 }