diff --git a/docs/features/mesh-on-wan.rst b/docs/features/mesh-on-wan.rst
new file mode 100644
index 00000000..2c6b0bb0
--- /dev/null
+++ b/docs/features/mesh-on-wan.rst
@@ -0,0 +1,20 @@
+Mesh on WAN
+===========
+
+It's possible to enable the mesh on the WAN port like this:
+
+  ::
+  uci set network.mesh_wan.auto=1
+  uci commit
+
+It may also be disabled again by running:
+
+  ::
+  uci set network.mesh_wan.auto=0
+  uci commit
+
+site.conf
+---------
+
+The optional option ``mesh_on_wan`` may be set to ``true`` (``false`` is the
+default) to enable meshing on the WAN port without further configuration.
diff --git a/docs/index.rst b/docs/index.rst
index 732fb26a..603474d3 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -41,6 +41,7 @@ Features
    features/batman-adv
    features/alfred
    features/autoupdater
+   features/mesh-on-wan
 
 Developer Documentation
 -----------------------
diff --git a/docs/user/site.rst b/docs/user/site.rst
index b97926fd..5170f448 100644
--- a/docs/user/site.rst
+++ b/docs/user/site.rst
@@ -100,6 +100,9 @@ fastd_mesh_vpn
         }
       }
 
+mesh_on_wan : optional
+    Enables the mesh on the WAN port (``true`` or ``false``).
+
 autoupdater : package
     Configuration for the autoupdater feature of Gluon.
     ::