Some form of network-level encryption, such as a Virtual Private Network (VPN), perhaps using IP Security Protocol (IPSEC), is the most obvious solution, although there are other reasonable choices.

某种可能使用 IP 安全性协议 (IPSEC) 的网络级加密形式（例如虚拟专用网 (VPN)）是最可取的解决方案，虽然也有其他合理的选择。

youdao

Select Encryption algorithm and hashing algorithm you want to use in your IPSec tunnels to encrypt the data.

选择在IPSec隧道中加密数据所用的加密算法和散列算法。

youdao