AWS VPC Peering is a networking connection between two Virtual Private Clouds (VPCs) that enables them to communicate with each other as if they are within the same network. This connection is established via a peering relationship, allowing instances in different VPCs to communicate using private IP addresses.
Key Features of VPC Peering:
Private Communication: VPC Peering allows private communication between VPCs using private IP addresses, which helps avoid exposure to the public internet.
Cross-Region Peering: You can peer VPCs in different AWS regions, known as inter-region VPC peering, which enables low-latency, high-bandwidth communication across regions.
No Transitive Peering: VPC Peering does not support transitive routing. This means if VPC A is peered with VPC B, and VPC B is peered with VPC C, VPC A cannot communicate directly with VPC C.
Security Groups and Network ACLs: Security groups and network ACLs (Access Control Lists) can be used to control traffic between peered VPCs.
Billing: You are charged for the data transferred over the VPC peering connection, but there are no additional charges for establishing the peering connection itself.
Use Cases:
Interconnecting Environments: Use VPC Peering to connect development, testing, and production environments that are in different VPCs.
Shared Services: Centralize common services (e.g., authentication services, logging) in a single VPC and allow other VPCs to access these services.
Multi-Tenant Architectures: Allow multiple tenants or departments to have isolated VPCs while still enabling communication between them as needed.
Setting Up VPC Peering:
Create a Peering Connection: Initiate a peering connection request from one VPC to another. This can be done via the AWS Management Console, AWS CLI, or AWS SDKs.
Accept the Request: The owner of the peer VPC must accept the peering connection request.
Update Route Tables: Update the route tables in each VPC to route traffic destined for the peered VPC through the peering connection.
Configure Security: Adjust security group rules and network ACLs to allow traffic between the peered VPCs.
In AWS cloud, a Virtual Private Cloud (VPC) is a private network for your resources. It’s a best practice to use a custom VPC for your resources, which means you can create multiple VPC in a AWS account. So how can they communicate to each other.
In this hands-on tutorial, I’ll walk you through how to peer two VCPs and how EC2 instances can able to talk across VPCs (multi region VPC's in same account). We’ll start by creating a VPC, then creating a peering connection between the two, and updating the route tables for both VPC's and I'll show you how route will work in each VPC.
Welcome to this LAB on VPC Peering connection single account cross region using AWS! In this tutorial, we'll walk through the entire process of setting up a VPC peering connection between two VPC's vpc-lab and my-vpc. Whether you're a beginner or looking to brush up on your skills, this video will boost your skill.
18 сен 2024
