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Refer to the following configuration excerpt. What does the keyword overload in the end of the configuration achieve?
It permits hosts to use the specified address pool if the number of available addresses is exceeded.
It denies network address translation to hosts, when the pool of addresses has been depleted.
It permits many users to connect to the Internet using only one public IP address.
It denies network address translation to hosts when bandwidth is over-loaded.
Overloading is a form of dynamic Network Address Translation (NAT), which maps multiple unregistered IP addresses to a single registered (Public) IP address via different source ports. It is also known as Port Address Translation (PAT), because it allows many users to connect to the internet using only one public IP address. To configure PAT is similar to dynamic NAT configuration; however with PAT the pool of addresses are only one and the _overload keyword at the end of the command. The last keyword determines that we are using PAT.
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