From f97f01ec5243f1ef3bfbed23e72ee2d46131e1cb Mon Sep 17 00:00:00 2001
From: chuan <pchuan98@qq.com>
Date: Wed, 27 May 2026 14:53:30 +0800
Subject: [PATCH] docs: add new issue about mux

---
 docs/issues/vless-reality-vision-mux.md | 89 +++++++++++++++++++++++++
 uv.lock                                 |  2 +-
 2 files changed, 90 insertions(+), 1 deletion(-)
 create mode 100644 docs/issues/vless-reality-vision-mux.md

diff --git a/docs/issues/vless-reality-vision-mux.md b/docs/issues/vless-reality-vision-mux.md
new file mode 100644
index 0000000..aa63203
--- /dev/null
+++ b/docs/issues/vless-reality-vision-mux.md
@@ -0,0 +1,89 @@
+# VLESS Reality Vision 开启 mux 后连接被关闭
+
+## 问题
+
+在节点使用 `VLESS + REALITY + xtls-rprx-vision` 时，开启 `mux` 后，透明代理和本地 HTTP/SOCKS 代理都会出现请求失败。
+
+现象：
+
+```text
+curl google.com
+curl: (52) Empty reply from server
+```
+
+Xray 日志：
+
+```text
+common/mux: dispatching request to tcp:google.com:80
+proxy/vless/outbound: tunneling request to tcp:v1.mux.cool:9527
+common/mux: failed to read metadata > io: read/write on closed pipe
+```
+
+关闭 `mux` 后，同一节点恢复正常：
+
+```text
+curl http://google.com/      -> HTTP/1.1 301
+curl https://google.com/     -> HTTP/2 301
+HTTP/SOCKS inbound 测试       -> 正常
+```
+
+## 原因
+
+当前失败不在 transparent/iptables，而在 Xray outbound 层。
+
+`mux` 会把多个 TCP 请求封装进一个 Mux.Cool 连接；官方文档说明它用于减少 TCP 握手延迟，默认关闭，并且不用于提升吞吐。`xtls-rprx-vision` 是 VLESS 的 XTLS flow，官方文档说明它在 `TCP + TLS/REALITY` 下会对 TLS 1.3 数据走底层直拷路径。
+
+两者叠加时，业务连接不再按普通 VLESS 请求直接发送，而是先被封装成 `v1.mux.cool` 子连接：
+
+```mermaid
+flowchart LR
+  A[curl / app] --> I[Xray inbound]
+  I --> R[routing -> proxy]
+  R --> M[mux<br/>v1.mux.cool]
+  M --> V[VLESS<br/>flow=xtls-rprx-vision]
+  V --> T[REALITY/TCP server]
+  T --> X[server closes pipe]
+```
+
+Xray-core 讨论区有同类案例：配置为 `VLESS + REALITY + TCP + xtls-rprx-vision + mux` 时，请求报 `curl: (52) Empty reply from server`，服务端日志出现 `common/mux` 和 `closed pipe` 类错误；去掉 `mux` 后恢复。
+
+因此这里的结论是：该节点组合下 `mux` 与 `xtls-rprx-vision` 不兼容或服务端不接受 mux 封装后的请求。
+
+## 解决方案
+
+在 UI 的“核心设置”里关闭 `mux`，保存并重启 Xray。
+
+生成配置中不要出现：
+
+```json
+"mux": {
+  "enabled": true,
+  "concurrency": 4
+}
+```
+
+修复后路径：
+
+```mermaid
+flowchart LR
+  A[curl / app] --> I[Xray inbound]
+  I --> R[routing -> proxy]
+  R --> V[VLESS<br/>flow=xtls-rprx-vision]
+  V --> T[REALITY/TCP server]
+  T --> G[google.com / target]
+```
+
+验证命令：
+
+```sh
+curl -v http://google.com/
+curl -vk https://google.com/
+curl -v -x http://127.0.0.1:20172 http://google.com/
+curl -v --socks5-hostname 127.0.0.1:20170 https://google.com/
+```
+
+参考：
+
+- [Project X: Outbound Proxy (Mux, XUDP)](https://xtls.github.io/en/config/outbound.html)
+- [Project X: VLESS (XTLS Vision Seed)](https://xtls.github.io/en/config/inbounds/vless.html)
+- [XTLS/Xray-core discussion #5481](https://github.com/XTLS/Xray-core/discussions/5481)
diff --git a/uv.lock b/uv.lock
index 59c6045..667873a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -154,7 +154,7 @@ wheels = [
 
 [[package]]
 name = "pyxray"
-version = "1.0.2"
+version = "1.0.3"
 source = { editable = "." }
 dependencies = [
     { name = "flask" },