diff --git a/internal/nodes/client_conn.go b/internal/nodes/client_conn.go
index 41a7263..5d5dc63 100644
--- a/internal/nodes/client_conn.go
+++ b/internal/nodes/client_conn.go
@@ -32,7 +32,6 @@ type ClientConn struct {
 
 	isTLS   bool
 	isHTTP  bool
-	isLn    bool // 是否为Ln连接
 	hasRead bool
 
 	isLO          bool // 是否为环路
@@ -67,7 +66,9 @@ func NewClientConn(rawConn net.Conn, isHTTP bool, isTLS bool, isInAllowList bool
 		createdAt:      fasttime.Now().Unix(),
 	}
 
-	conn.isLn = existsLnNodeIP(conn.RawIP())
+	if existsLnNodeIP(conn.RawIP()) {
+		conn.SetIsPersistent(true)
+	}
 
 	// 超时等设置
 	var globalServerConfig = sharedNodeConfig.GlobalServerConfig
@@ -112,7 +113,7 @@ func (this *ClientConn) Read(b []byte) (n int, err error) {
 	}
 
 	// 设置读超时时间
-	if !this.isLn && this.isHTTP && !this.isPersistent && !this.isShortReading && this.autoReadTimeout {
+	if this.isHTTP && !this.isPersistent && !this.isShortReading && this.autoReadTimeout {
 		this.setHTTPReadTimeout()
 	}
 
@@ -133,7 +134,7 @@ func (this *ClientConn) Read(b []byte) (n int, err error) {
 	}
 
 	// 忽略白名单和局域网
-	if !this.isLn && this.isHTTP && !this.isInAllowList && !utils.IsLocalIP(this.RawIP()) {
+	if !this.isPersistent && this.isHTTP && !this.isInAllowList && !utils.IsLocalIP(this.RawIP()) {
 		// SYN Flood检测
 		if this.serverId == 0 || !this.hasResetSYNFlood {
 			var synFloodConfig = sharedNodeConfig.SYNFloodConfig()
@@ -169,8 +170,7 @@ func (this *ClientConn) Write(b []byte) (n int, err error) {
 	}
 
 	// 设置写超时时间
-	if !this.isLn && this.autoWriteTimeout {
-		// TODO L2 -> L1 写入时不限制时间
+	if !this.isPersistent && this.autoWriteTimeout {
 		var timeoutSeconds = len(b) / 1024
 		if timeoutSeconds < 3 {
 			timeoutSeconds = 3
@@ -179,7 +179,7 @@ func (this *ClientConn) Write(b []byte) (n int, err error) {
 	}
 
 	// 延长读超时时间
-	if !this.isLn && this.isHTTP && !this.isPersistent && this.autoReadTimeout {
+	if this.isHTTP && !this.isPersistent && this.autoReadTimeout {
 		this.setHTTPReadTimeout()
 	}
 
@@ -246,7 +246,7 @@ func (this *ClientConn) SetDeadline(t time.Time) error {
 
 func (this *ClientConn) SetReadDeadline(t time.Time) error {
 	// 如果开启了HTTP自动读超时选项，则自动控制超时时间
-	if !this.isLn && this.isHTTP && !this.isPersistent && this.autoReadTimeout {
+	if this.isHTTP && !this.isPersistent && this.autoReadTimeout {
 		this.isShortReading = false
 
 		var unixTime = t.Unix()
diff --git a/internal/nodes/http_request.go b/internal/nodes/http_request.go
index fba2863..35c0e9b 100644
--- a/internal/nodes/http_request.go
+++ b/internal/nodes/http_request.go
@@ -480,6 +480,17 @@ func (this *HTTPRequest) configureWeb(web *serverconfigs.HTTPWebConfig, isTop bo
 	// remote addr
 	if web.RemoteAddr != nil && (web.RemoteAddr.IsPrior || isTop) && web.RemoteAddr.IsOn {
 		this.web.RemoteAddr = web.RemoteAddr
+
+		// check if from proxy
+		if len(this.web.RemoteAddr.Value) > 0 && this.web.RemoteAddr.Value != "${rawRemoteAddr}" {
+			var requestConn = this.RawReq.Context().Value(HTTPConnContextKey)
+			if requestConn != nil {
+				requestClientConn, ok := requestConn.(ClientConnInterface)
+				if ok {
+					requestClientConn.SetIsPersistent(true)
+				}
+			}
+		}
 	}
 
 	// charset