WIP fix Attachtun-net-with-stack

1 files changed, 10 insertions, 4 deletions

diff --git a/tun/netstack/tun.go b/tun/netstack/tun.go
index 8e3ce4b..233cf27 100644
--- a/tun/netstack/tun.go
+++ b/tun/netstack/tun.go
@@ -48,13 +48,19 @@ type Net struct {
 }
 
 func (e *endpoint) Attach(dispatcher stack.NetworkDispatcher) {
-	if dispatcher == nil {
-		(*netTun)(e).events <- tun.EventUp
-	} else {
-		(*netTun)(e).events <- tun.EventDown
+	var event tun.Event
+
+	if e.dispatcher == nil && dispatcher != nil {
+		event = tun.EventUp
+	} else if e.dispatcher != nil && dispatcher == nil {
+		event = tun.EventDown
 	}
 
 	e.dispatcher = dispatcher
+
+	if event > 0 {
+		(*netTun)(e).events <- event
+	}
 }
 
 func (e *endpoint) IsAttached() bool {