From 1ef008c95069fa57334b51c00a7b8513f224370b Mon Sep 17 00:00:00 2001
From: Viktor Liu <17948409+lixmal@users.noreply.github.com>
Date: Thu, 5 Feb 2026 18:58:19 +0800
Subject: [PATCH] Add /dev/net/tun for container running in userspace (#589)

---
 src/pages/get-started/install/docker.mdx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/pages/get-started/install/docker.mdx b/src/pages/get-started/install/docker.mdx
index 33a0a292..5d5c775b 100644
--- a/src/pages/get-started/install/docker.mdx
+++ b/src/pages/get-started/install/docker.mdx
@@ -46,6 +46,9 @@ services:
           - NET_ADMIN
           - SYS_ADMIN
           - SYS_RESOURCE
+      devices:
+          # Required when using userspace mode or when kernel module is not available
+          - /dev/net/tun
       network_mode: host
       environment:
           - NB_SETUP_KEY=<SETUP KEY>