For $2 per month per IP, MacStadium offers individual, public IP addresses for rental.
To configure a second IP address in macOS1, follow these steps:
Another use for multiple IP addresses is when running VMware ESXi on your hosted Mac. When you rent a hosted Mac running VMware ESXi it includes one IP address for public internet access, but you'll need to order more if you wish to build virtual machines that are publicly accessible via the internet.
We also offer large IP address blocks. A block must be ordered via support ticket. These make sense if you have a cluster of servers or virtual machines and need consecutive IP addresses.
1. macOS may be interchangeable with OS X, the name used for previous versions of Apple's Mac operating system. ↩