Traversal Cloud 4G Router NAT Tunnel Tool



Traversal Cloud is a secure NAT tunnel tool to provide remote control function on the 4G outdoor routers and connected hosts. It’s integrated into the OpenEzen firmware EV3104 and later versions.

You can access and control the 4G routers anytime, anywhere, on a web browser. It offers the easiest way to look over your networks. None public IP address and DDNS configuration required.

It’s completely free!

A web proxy is pre-built in the firmware. The traversal cloud is turn off by default. You can follow the below steps to enable it.

  1. Log in the router admin at, and go to Services > Traversal Cloud.
  2. Click the checkbox Enable, then click the button Save & Apply.
  3. Now you can access your router at the Cloud Address on a web browser.

Recommended to set up a strong router password (System / Administration) when the traversal cloud is enabled.

How to enable traversal cloud and access the cloud address

Remote SSH is an advanced tool to connect your router remotely via the command-line interface. It offers a flexible solution to integrate your router to various platforms. The customize traversal cloud proxy rule is only available for firmware version EV3104.

  • Log in the router admin at, go to System / Administration and enable the checkbox of Gateway Ports. You can change the SSH port.
  • Go to Service / Traversal Cloud, click the tab of Rules, then click the Add button to add an extra SSH proxy.
  • Configure the new proxy as the below parameters.
    Proxy Name: Use SSH_Router-Serial-Number (Must be unique!)
    Type: Choose TCP
    Local IP: Use
    Local Port: Default 22, same as the SSH port.
    Remote Port: Adjustable
    Privilege Mode: Must enable this checkbox.
  • Click the Save & Apply button.
  • Now you can access the router via remote SSH on an SSH tool. For example, enter “ssh -oPort=6222 [email protected]

The traversal cloud supports more protocols, including TCP UDP STCP XTCP HTTP and HTTPS. You can set up a max of three proxies with free. The free data allowance is 1GB per month.

The traversal cloud server is deployed on Google server. Your connection is safe and secure.

We can also deploy a dedicated traversal cloud server on your domain and your own VPS server or cloud platform. Please contact us to check the deploying fee of the customized services.


Password: OutDoorRouterVT


Password: root


Why can not access the remote address?
  1. Please ensure the traversal cloud has been enabled. After enabling the checkbox, please click the “Save & Apply” button.
  2. Before access the traversal cloud server, the 4G router must have an Internet connection. Please check the Internet connection on the router.
  3. If you once turned off the traversal cloud function within a power cycle, please reboot the router to refresh the traversal connection session.