Ruijie JaCS supports accessing the eWeb interface of a gateway through a tunnel. 

The specific steps are as follows:

Step 1: Select the gateway, and click eWeb.

Step 2: After creating the tunnel, the eWeb interface of the device will automatically open in a new tab. 

If the eWEB does not open automatically, you can click "here" to jump to the eWEB or try to re-create the tunnel.