On-Prem Datacenter to AWS Cloud Connectivity

Amazon Virtual Private Cloud (Amazon VPC) is a networking solution that allows you to set boundaries around your AWS resources. Amazon VPC allows you to create an isolated area of the AWS Cloud.

This isolated area allows you to launch resources in a virtual network that you have defined. Subnets are used to organize resources within a virtual private cloud (VPC). A subnet is a part of a VPC that can house resources like Amazon EC2 instances.

⭐Related : What is AWS Availability Zones (AZ) ?
⭐Related : What is Amazon Resource Name (ARN) ?
⭐Related : What is AWS Management Console ?

There are three ways to connect with AWS cloud, lets talk about one by one

On-Prem Datacenter to AWS Cloud Connectivity

Fig 1.1- AWS Connectivity

Internet gateway

To allow public traffic from the internet to access your VPC, you attach an internet gateway to the VPC. An internet gateway is a connection between a VPC and the internet. You can think of an internet gateway as being similar to a doorway that customers use to enter the coffee shop. Without an internet gateway, no one can access the resources within your VPC.

Virtual private gateway

Here’s an example of how a virtual private gateway works. You can think of the internet as the road between your home and the coffee shop. Suppose that you are traveling on this road with a bodyguard to protect you. You are still using the same road as other customers, but with an extra layer of protection. The bodyguard is like a virtual private network (VPN) connection that encrypts (or protects) your internet traffic from all the other requests around it.

The virtual private gateway is the component that allows protected internet traffic to enter into the VPC. Even though your connection to the coffee shop has extra protection, traffic jams are possible because you’re using the same road as other customers.

A virtual private gateway enables you to establish a virtual private network (VPN) connection between your VPC and a private network, such as an on premises data center or internal corporate network. A virtual private gateway allows traffic into the VPC only if it is coming from an approved network.

AWS Direct Connect

AWS Direct Connect is a service that enables you to establish a dedicated private connection between your data center and a VPC. Suppose that there is an apartment building with a hallway directly linking the building to the coffee shop. Only the residents of the apartment building can travel through this hallway.

This private hallway provides the same type of dedicated connection as AWS Direct Connect. Residents are able to get into the coffee shop without needing to use the public road shared with other customers.

The private connection that AWS Direct Connect provides helps you to reduce network costs and increase the amount of bandwidth that can travel through your network.

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On-Prem Datacenter to AWS Cloud Connectivity