Windows server 2016 Advice?

Hey Everyone,

really glad I found this forum!

Even though this is a windows 2012 based I am after some advice on Windows Server 2016 if that's ok? mainly to do with setting the Default gateway and the subnet mask though PowerShell. I've already done the IP address wether its done correctly is a different question lol. I'am pretty new to PowerShell plus I rarely ever use it, so its not my strong point. So any advice would be great.

P.S. currently there is no default gateway but I know that it has to be set at and the subnet mask has to be changed from to 

The IP address is

The DNS server is the same as the IP address

Thank You.