From 209c0c058acd0f2b987bcf44c80a7b60c82b98b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Fri, 4 Aug 2023 10:17:38 +0800
Subject: [PATCH] fix: MTU random range

---
 gold/link/send.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gold/link/send.go b/gold/link/send.go
index ae256fe..2986469 100644
--- a/gold/link/send.go
+++ b/gold/link/send.go
@@ -17,7 +17,7 @@ func (l *Link) WriteAndPut(p *head.Packet, istransfer bool) (n int, err error) {
 	logrus.Debugln("[send] count:", sndcnt, ", additional data:", uint16(sndcnt))
 	mtu := l.mtu
 	if l.mturandomrange > 0 {
-		mtu -= uint16(rand.Intn(int(l.mturandomrange)))
+		mtu -= uint16(rand.Intn(int(l.mturandomrange))) & 0xfff8
 	}
 	if len(p.Data) <= int(mtu) {
 		if !istransfer {