> For the complete documentation index, see [llms.txt](https://docs.cloudeka.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudeka.id/deka_flexi/deka-vpn/ipsec-configuration.md).

# IPsec Configuration

**IPsec (Internet Protocol Security)** is a set of security protocols and rules used to protect data communications over a network, including in cloud environments. To create an IPsec configuration you need the IP address network used by the VPN on the target project.