Elastic IP Addresses and the AWS Network’s Reach
- AWS network scope basically complies with AWS’s geographical boundaries. The public IP addresses allocated to your instance vary by area, but they are universal in nature, which means that, like all public IP addresses, they are all distinct and may be accessed by anybody worldwide.
- For instance, if you start an instance in the AWS US East region, it will have a public IP address that comes from one of the IP address ranges that Amazon keeps for US East. With that public IP address, your instance is accessible to all resources in the world (including those in AWS).
- Region-scoped IP addresses are also available. Five Elastic IP addresses are the maximum you can have per area by default, and they are all contained within the region-specific address ranges.
- Region-scoped IP addresses also apply to private ones. Using the private IP address assigned to the instances, instances inside any availability zone in a given region can connect with one another without being charged for network traffic.
AWS Elastic IP Addresses
Pre-requisite: AWS
A Static IPv4 address more suited for dynamic cloud computing is called an Elastic IP (EIP) address. These IPs are mostly used to hide instances or software from your AWS account that fail. The address is mapped to another instance that is as soon as feasible made available in your account in order to accomplish this. Your AWS account receives an IP address automatically, and until you choose to surrender it, it is yours. As an alternative, you can add the IP to a DNS record for your domain. Making sure the supplied domain points to your instance using this will do that.
The internet can be used to access this address just like any other public IPv4 address. If your instance lacks a public IPv4 address that allows communication from the internet to the instance, you can associate this IP address with it. The AWS EIP does not currently support IPv6 addresses.