IPSEC protocol is a kind of network security standard which is framed by IETF organization for safe communication, and it can be used to provide security protection for IP and higher layer protocols.

IPSEC协议是IETF组织为在IP层提供安全通信而制定的网络安全标准，能为IP及其上层协议提供安全保证。

youdao

In fact, in many cases, subversive network applications and some security methods will deliberately use non-standard ports.

事实上，大多数情况下一些破坏性网络应用和一些安全性方法会故意使用非标准端口。

youdao

To do research on the information network security technology and standard and develop the relevant security products and to be engaged in the security service work.

进行信息网络安全技术和标准的研究，开发相应的安全产品，并从事安全服务工作。

youdao

Always include MFPs in standard network security measures and policies.

FORBES: The Hidden IT Security Threat: Multifunction Printers