In the mesh model, every node is connected to every other node with a dedicated IPsec tunnel. Imagine a global network with two “spokes”, one in India and another one in Singapore, but a “hub” located in the United States - traffic needs to travel a round trip thousands of miles back and forth in order to get to its destination. This architecture is simple because each node only needs to maintain one tunnel to get connectivity to other locations, but it can introduce significant performance penalties. Traffic between spokes flows through the hub for routing and in order to have security policies applied (like by an on-premise firewall). In the hub and spoke model, each “spoke” node establishes an IPsec tunnel back to a core “hub,” usually a headquarters or data center location. These VPNs tend to have one of two main architectures: hub and spoke, or mesh. Many companies have adopted IPsec VPNs for securely transferring corporate traffic over the Internet. IPsec as a technology has been around since 1995, and is broadly implemented across many hardware and software platforms. In order to start sending this traffic over the Internet, customers need a blanket layer of encryption across all of it IPsec tunnels are traditionally an easy way to accomplish this. We’ve talked to many customers who have legacy file transfer and other applications running across their MPLS circuits unencrypted, and are relying on the fact that these circuits are “private” to provide security. It is good practice to encrypt any traffic that’s sensitive at the application level, but for customers who are transitioning from forms of private connectivity like Multiprotocol Label Switching (MPLS), this often isn’t a reality. Traffic is routed to the closest Cloudflare location, where security policies are applied before we send it along optimized routes to its destination - whether that’s within your private network or on the Internet. With Cloudflare One, customers can connect any traffic source or destination - branch offices, data centers, cloud properties, user devices - to our network. Using the Internet as your corporate network So we built support for it! Read on to learn how our IPsec implementation is faster and easier to use than traditional IPsec connectivity, and how it integrates deeply with our Cloudflare One suite to provide unified security, performance, and reliability across all your traffic. We've heard from you that IPsec is your method of choice for connecting to us at the network layer, because of its near-universal vendor support and blanket layer of encryption across all traffic. As a customer, you should be able to use whatever method you want to get your traffic to Cloudflare's network. Today, we're excited to announce support for IPsec as an on-ramp to Cloudflare One. This post is also available in 简体中文, 日本語, bahasa Indonesia, ไทย.
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