Help Center/ Virtual Private Network/ Service Overview/ Basic Concepts/ IPsec VPN

Updated on 2025-05-14 GMT+08:00

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IPsec VPN

Internet Protocol Security (IPsec) VPN uses a secure network protocol suite that authenticates and encrypts the packets of data to provide secure encrypted communication between different networks. S2C VPN is an IPsec VPN technology on the cloud. To purchase an S2C VPN gateway, click Buy Now.

In the example shown in Figure 1, assume that you have created a VPC with two subnets (192.168.1.0/24 and 192.168.2.0/24) on the cloud, and the router in your on-premises data center also has two subnets (192.168.3.0/24 and 192.168.4.0/24). In this case, you can create a VPN to connect the VPC subnets and the data center subnets.

Figure 1 IPsec VPN
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Site-to-site VPN is supported to enable communication between VPC subnets and on-premises data center subnets.

Parent topic: Basic Concepts

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