While the PC port is mirroring the LAN port, you can connect PC on PC port to capture ethernet traffic from 
LAN port. 
13.6 Screen Capture 
If there is a problem with the phone, the screenshot can help the technician identify the problem. You can get 
the screenshots with command by logging into the phone with SSH connection (default login 
username/password: admin/123456). After connecting, input command “screen get”.  
Regarding how to enable SSH connection on the phone, please refer to section 13.1.3.2. 
For example, assuming you login the phone by SSH connection with tool Mobaxterm, you can make a 
screenshot with command and download it in local PC.