Suppose you discover that some of the computing resources that you have on the public Internet are underutilized, and resources on your organization's internal network are overloaded.

假定您发现您在公共互联网上的计算资源没有得到充分利用，您组织的内部网络上的资源过载。

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Use an egress filter on your network to ensure that no packets leave your network with a source address that isn't a part of your internal network.

在网络中使用出口过滤器来确保没有使用不属于你的内部网络的源地址的包离开你的网络。

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Using software you install on your PC, you can take complete control over all the phones in the house and turn your internal phone network into a system like a private branch exchange (PBX) not unlike what you might find at the office.

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