This guide explain the NAT Gateway configuration functions as a bridge between a private network and the internet, providing additional security for the private network. This guide will discuss the steps to add NAT Gateway configuration in the Cloudeka portal service. To be able to remotely access virtual machines in the Cloudeka portal service, you must configure a VPC using the Expert type for easy access via a terminal on your computer. The difference between Simple VPC and Expert VPC is the location of the IP addressing used. In the case of a Simple VPC, IP addressing goes directly to the virtual machine, while in the case of an Expert VPC, IP addressing first goes through the NAT Gateway. Besides the location of the IP addressing, the Expert VPC allows users to save floating IPs because there is additional port configuration that can be used for multiple virtual machines in the same subnet.