Port Forwarding ZYXEL T-50 support

Hi Community,

I find myself to be quite tech savvy yet this is a head-scratcher.

The device has ethernet connected yet isnt connecting to the internet. I will need to open port 44158 in my router to make the connection. Also ports 22 & 443 as well. After doing so, securing them all. So, a two step job.

Heres the quest (in full): – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 

Ive logged into the router’s NAT section and Im adding a new rule like this:

Yet whats the IP need to be?

How can I test to see its working?

& of course when its open,

How do I secure the open port?

Thank you in advance for the support!

All the best,

Brian