How to access two multiple sites?

I know the Neos supports multiple sites, and I set two site in my Neos, like this:

Now I can only use one URL to access the two site, if I want to load ‘Mydemo’ site, I should inactive the ‘NeosDemoTypo3Org’ site.This is not friendly,I want to konw how to access the two sites according defferent URL. Just like I can load http://xxx1.html to according ‘NeosDemoTypo3Org’ site, meanwhile, I can load http://xxx2.html to according ‘Mydemo’ site.

you need to assign two different domains to the sites and then access them via the respective domain.

Thanks, get it