add UDP support for reverse proxy tunnel

listener/rudp/listener.go

@@ -110,7 +110,7 @@ func (l *rudpListener) Close() error {
 		close(l.closed)
 		if l.ln != nil {
 			l.ln.Close()
-			l.ln = nil
+			// l.ln = nil
 		}
 	}
 

listener/rudp/metadata.go

@@ -9,8 +9,8 @@ import (
 
 const (
 	defaultTTL            = 5 * time.Second
-	defaultReadBufferSize = 1500
-	defaultReadQueueSize  = 128
+	defaultReadBufferSize = 4096
+	defaultReadQueueSize  = 1024
 	defaultBacklog        = 128
 )