From 9b0a02f8e6c47ae37c3057def583a026be5884cd Mon Sep 17 00:00:00 2001
From: xqzr <34030394+xqzr@users.noreply.github.com>
Date: Fri, 25 Jul 2025 17:49:36 +0800
Subject: [PATCH] Update system_dialer.go

---
 transport/internet/system_dialer.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/transport/internet/system_dialer.go b/transport/internet/system_dialer.go
index f6408ef6..4945ff61 100644
--- a/transport/internet/system_dialer.go
+++ b/transport/internet/system_dialer.go
@@ -3,6 +3,7 @@ package internet
 import (
 	"context"
 	"math/rand"
+	gonet "net"
 	"syscall"
 	"time"
 
@@ -87,14 +88,22 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
 			Dest: destAddr,
 		}, nil
 	}
-	TCPKeepAlive := time.Duration(45)
+	TCPKeepAlive := time.Duration(1)
+	TCPKeepAliveConfig := gonet.KeepAliveConfig {
+		Enable:   true,
+		Idle:     45 * time.Second,
+		Interval: 45 * time.Second,
+		Count:    -1,
+	}
 	if sockopt != nil && (sockopt.TcpKeepAliveInterval != 0 || sockopt.TcpKeepAliveIdle != 0) {
 		TCPKeepAlive = time.Duration(-1)
+		TCPKeepAliveConfig.Enable = false
 	}
 	dialer := &net.Dialer{
 		Timeout:   time.Second * 16,
 		LocalAddr: resolveSrcAddr(dest.Network, src),
 		KeepAlive: TCPKeepAlive,
+		KeepAliveConfig: TCPKeepAliveConfig,
 	}
 
 	if sockopt != nil || len(d.controllers) > 0 {