only keepalive when established

llarp/iwp_link.cpp

@@ -805,7 +805,8 @@ namespace iwp
         // are done
         return frames == 0;
       }
-      // send keepalive every tick
+      // send keepalive if we are established
+      if(state == eEstablished)
         send_keepalive(this);
 
       // TODO: determine if we are too idle