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。
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.
本文分析了虚拟专用网存在的安全问题，介绍了虚拟专用网的主要安全技术，提出了设计安全虚拟专用网的一般原则与步骤。
This article analyses the security problems of the Virtual Privat Network, introduces its main security technology and put forward the general principles and measures of the security design of VPN.
用虚拟专用网和多级用户权限认证技术保证抽油井数据网络传输的安全性。
Besides, Virtual Private network (VPN) and authority authentication technique are used to ensure the safety of network transmission.
虚拟专用网（VPN）技术为企业提供了低成本、高效、安全可靠的网络方案。
Virtual private networks (VPNs) offer cost-effective and secure solutions to corporations'networking challenges.
虚拟专用网vpn是一个新的网络热门技术，它可以利用公共网络建立企业内部网，从而不仅减轻了企业费用，还保证了数据的安全性。
The Virtual Private network (VPN) is a new network technology, which can use public network to construct Intranet. It not only reduce the expense of industry, but also ensure data security.
本文在分析资源预留协议的基础上，给出一种基于IP安全协议隧道协议的虚拟专用网服务质量的实现方案。
According to the analysis of resource reservation protocol (RSVP), this paper puts forward an implementation scheme to the QoS of VPN, which is implemented by IPSec tunneling protocol.
本文在分析资源预留协议的基础上，给出一种基于IP安全协议隧道协议的虚拟专用网服务质量的实现方案。
According to the analysis of resource reservation protocol (RSVP), this paper puts forward an implementation scheme to the QoS of VPN, which is implemented by IPSec tunneling protocol.
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