From the course: AWS Certified Advanced Networking - Specialty (ANS-C01) Cert Prep

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Introduction to Dead Peer Detection (DPD)

Introduction to Dead Peer Detection (DPD) - Amazon Web Services (AWS) Tutorial

From the course: AWS Certified Advanced Networking - Specialty (ANS-C01) Cert Prep

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Introduction to Dead Peer Detection (DPD)

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Have you ever wondered what happens when a VPN connection suddenly stops working and you don't even know it? Imagine sending important data to a branch office and your firewall goes down. Your data just disappears into a black hole. Today, we're going to learn about Dead Peer Detection, or DPD, a feature that helps networks detect when a VPN connection or IKE peer is no longer reachable. This helps prevent lost data and ensures your traffic is always secure and delivered. Let's get started! Dead Peer Detection or DPD is a method used in network security to check if the other end of a VPN tunnel is still active. A VPN tunnel connects two networks securely over the internet. DPD helps prevent data loss by ensuring the remote device called a peer is still online. Here, the HQ office is sending traffic to a branch office. And without DPD, if the branch firewall goes down, the HQ keeps sending data into the void. Before we dive…

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