The VPN rights of users in MPLS VPN network is based on their location. It is not flexible.

MPLS VPN网络中用户拥有的VPN权限是由用户所处的物理位置决定的，很不灵活。

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Now, many PE devices in MPLS VPN network do not support multicast service, as result, it brings difficulty in multicast service.

目前由于MPLS VPN网络中很多PE设备尚不支持组播业务，因此在VPN内部署组播业务时遇到了一定的困难。

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Therefore this paper proposed one kind of VPN network constructs the plan based on IP and the multi-protocol label swap protocol.

因此本文提出了一种基于IP和多协议标签交换协议的专用VPN网络构建方案。

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It is possible malicious hackers can intercept this data unless you set up a security such as a remote access virtual private network (VPN).

BBC: You could get online across London with the new plans.

And traffic between geographically separated company networks can be routed through a virtual private network (VPN) tunnel instead of being exposed to the open Internet.

CNN: Analysis: Linux security

Remote access allowed workers to VPN into a corporate network to synch a corporate Exchange a ccount with a computer at home or while traveling.

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