Category: AWS Transit Gateway

Traditional on-premises VPN services are fixed in capacity and difficult to scale up, or down, in a rapid and on-demand fashion. Hardware constraints, licensing, and bandwidth can all be factors that prevent traditional client VPN services from scaling to meet the needs of a rapidly growing mobile workforce. Fortunately, the elasticity of cloud and pay-as-you-go […]

Introduction With the introduction of AWS Transit Gateway, it is easier for customers to manage connectivity between many VPCs. Further simplification can be achieved by routing all outbound traffic through one shared egress VPC. This allows re-use of NAT Gateways and can improve overall network design and operational efficiency. This ‘egress VPC’ design pattern is […]

A virtual private network (VPN) is one of the most common ways that customers connect securely to the AWS Cloud from on-premises or data center environments. Customers establish VPN connectivity to AWS using AWS managed VPN solutions like AWS Site-to-Site VPN, transit gateways, or partner solutions running on Amazon EC2. In this post, we demonstrate […]

In a typical enterprise network, customers have VPCs across multiple accounts within an AWS Region to segment workloads. This segmentation can take different forms and depends on the company structure, security policy, business functions, and model. The drivers of the segmentation can vary. For example, segmentation could be driven by security and regulatory requirements, costs, […]

Update October 11, 2020 – While the implementations described in this post remain valid, it was written before Gateway Load Balancer became available. Gateway Load Balancer is designed specifically for adding firewalls and other virtual network appliances to your AWS network. If you would like to learn more, Introducing AWS Gateway Load Balancer: supported architecture […]

As IT environments grow, they can become more complex, with additional accounts, VPCs, and the networking between them. AWS Transit Gateway is a service that addresses networking complexity by building a hub-and-spoke network to simplify your network routing and security. With Transit Gateway, you can connect your Virtual Private Clouds (VPCs) that span multiple accounts […]

I want to take some time to dive more deeply into a use case outlined in NET301 Best Practices for AWS PrivateLink. The use case involves using AWS Transit Gateway, along with Amazon Route 53 Resolver, to share AWS PrivateLink interface endpoints between multiple connected Amazon virtual private clouds (VPCs) and an on-premises environment. We’ve seen […]

A successful hybrid networking strategy goes beyond private network connectivity. It often requires dealing with independent internal zones both in Amazon Virtual Private Cloud (Amazon VPC) and on-premises. Such a strategy needs Domain Name System (DNS) naming that spans the entire network. Typically, this is managed by providing name resolution services in the same place […]

Amazon Virtual Private Cloud (Amazon VPC) provides you with the ability to create as many virtual networks as you need. It also provides different options for connecting these networks to each other and to non-AWS infrastructure, such as on-premises data centers, remote headquarters, or other offices. Most of you start this journey with a few […]