This paper focuses on the popular Virtual Private Networks' technologies and solutions.

重点介绍了目前虚拟私用网络实现的几种不同技术和方案。

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Examples include virtual private networks (VPNs) and networks configured to a private domain.

示例包括虚拟专用网络(virtual private net work, VPN)和配置到专用域的网络。

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Virtual private networks (VPNs) offer cost-effective and secure solutions to corporations'networking challenges.

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。

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Cisco provides network security products such as virtual private networks (VPNs) and firewalls.

FORBES: Cisco Should Be $25 But No Thanks To Network Security Business

Leverage firewalls, virtual private networks, anti-virus and anti-spam software and secure mobile solutions to secure network access and mobile devices.

FORBES: Do You Really Need Cyber Liability Insurance?

Cisco offers security products like firewall, intrusion prevention, remote access and virtual private networks (VPNs), unified client, web, and email security.

FORBES: Network Security Just One Brick In Cisco's Road To $24