Map Main Site Domain Name

G'day Guys,

I have installed the plugin on a multisite and when activated it works fine. My domain has a dedicated IP and is accessible via that IP as well.

But I want to map a sup domain to my main site so the original domain name will not be visible.
This is what I have done now: (multisite install with domain mapping installed)
created a record on sup domain: with dedicated IP from
Added in the Domain Mapping Options (at

Will this able me to show the main site as: