Author: Ankit Chadha

Application Load Balancer (ALB) operates at layer-7 of the OSI model and allows you to load balance HTTP and HTTPS requests to its backend targets. In March 2025, we launched ALB and Amazon VPC IP Address Manager (IPAM) integration that allows you to use predictable IP address blocks for your internet-facing ALBs. This feature helps […]

Update: Sep 10, 2024 – Corrected a CloudWatch metric name. Amazon Web Service (AWS) Gateway Load Balancer (GWLB) is a managed AWS service that allows you to insert third-party firewall appliances into the data path. GWLB helps you deploy, scale, and manage third-party appliances, and it acts as a bump-in-the-wire device and passes traffic transparently […]

AWS recently announced support for mutually authenticating clients that present X509 certificates to Application Load Balancer (ALB). In this post, we discuss options for implementing this new feature, and things to consider while implementing. ALB operates at the application layer (layer 7 in the OSI model) and load balances incoming HTTP/HTTPS requests to backend targets. […]

Amazon VPC IP Address Manager (IPAM) is a VPC feature that allows you to plan, track, and monitor IP addresses for your AWS workloads. Until now, VPC IPAM allowed you to allocate CIDR blocks and monitor them at the VPC level. With a recent feature enhancement in VPC IPAM, you can now manage CIDR allocations […]

Amazon Web Services (AWS) customers can use the AWS global infrastructure to deploy workloads to multiple AWS Regions. They can create global networks that span multiple AWS Regions to connect these workloads to each other and to on-premises networks. A common design pattern is to use a central networking AWS account to own shared network resources, such as AWS Transit […]

An increasing number of organizations are adopting IPv6 in their environments, driven by the public IPv4 space exhaustion, private IPv4 scarcity, and the need to provide service availability to IPv6-only clients. While undergoing this transformation, customers sometimes find it difficult to assess application behavior in IPv6-enabled environments on AWS. In this blog post, we show […]

AWS NAT Gateway is a highly available and horizontally scalable Network Address Translation (NAT) service. AWS NAT Gateway allows resources in a private subnet to connect to target resources outside the subnet using the NAT Gateway’s IP address. These target resources can either be in the same VPC, a different VPC, on the internet, or […]

At re:Invent 2020, AWS introduced  Gateway Load Balancer (GWLB), an AWS service that helps you deploy, scale, and manage third-party virtual network appliances, such as firewalls, intrusion detection and prevention systems, and others. GWLB is a type of load balancer under the Elastic Load Balancing (ELB) family. Other load balancers within the ELB family include […]

It is common to encounter network designs on AWS with resources that belong to multiple AWS accounts. For example, you may have several AWS accounts with Virtual Private Clouds (VPCs) in those accounts connected to an AWS Transit Gateway in a central networking account. You may need to determine or diagnose network reachability between AWS […]

This blog is co-authored by Parrish Gamarra, Principal Network Architect, Johnson & Johnson Introduction Mergers, Acquisitions (M&A), and divestitures are part of many enterprises’ journeys, driven by evolving business goals like expanding into new geographies or to spin off a line of business. Refer to this post for checking your general readiness for M&A with […]