Use datagram SPTPS for packet exchange between nodes.

[tinc] / src / graph.c

diff --git a/src/graph.c b/src/graph.c
index b3a2c25..506b6df 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -263,10 +263,16 @@ static void check_reachability(void) {
 
                        subnet_update(n, NULL, n->status.reachable);
 
-                       if(!n->status.reachable)
+                       if(!n->status.reachable) {
                                update_node_udp(n, NULL);
-                       else if(n->connection)
-                               send_ans_key(n);
+                       } else if(n->connection) {
+                               if(experimental && OPTION_VERSION(n->options) >= 2) {
+                                       if(n->connection->outgoing)
+                                               send_req_key(n);
+                               } else {
+                                       send_ans_key(n);
+                               }
+                       }
                }
        }
 }