What does the setting Port setup under Newtwork settings do?

Under network settings there is an option for port setup, when clicking on default port 80  and one other show up what is th epurpose of this? as when we enable remote management can get to the WD Mirror without any issue. 

Is is there to change ports if needed?

Check page 119 of the manual for information on this.

http://www.wdc.com/wdproducts/library/UM/ENG/4779-705122.pdf#page=124

You can also read the following KB article. 

http://wdc.custhelp.com/app/answers/detail/a_id/10649

I understand that part, the confusion is where it seems redundant at the lower bottom under setting and Network where one can add ports, whats the use for that?

effusion_01 wrote:

I understand that part, the confusion is where it seems redundant at the lower bottom under setting and Network where one can add ports, whats the use for that? 

If you’re configuring port forwarding manually in your router’s configuration, then you don’t need to do anything else on the Mirror.   If you want the Mirror to configure your router automatically via UPnP, then you configure it there.

Thanks, understand now.