change the Host value in http request header

src/frp/cmd/frpc/control.go

@@ -144,6 +144,8 @@ func loginToServer(cli *client.ProxyClient) (c *conn.Conn, err error) {
 		UseGzip:       cli.UseGzip,
 		PrivilegeMode: cli.PrivilegeMode,
 		ProxyType:     cli.Type,
+		LocalIp:       cli.LocalIp,
+		LocalPort:     cli.LocalPort,
 		Timestamp:     nowTime,
 	}
 	if cli.PrivilegeMode {

src/frp/cmd/frps/control.go

@@ -276,6 +276,8 @@ func doLogin(req *msg.ControlReq, c *conn.Conn) (ret int64, info string) {
 		// set infomations from frpc
 		s.UseEncryption = req.UseEncryption
 		s.UseGzip = req.UseGzip
+		s.ClientIp = req.LocalIp
+		s.ClientPort = req.LocalPort
 
 		// start proxy and listen for user connections, no block
 		err := s.Start(c)