Quote:
Originally Posted by Penalty
Correction!
The whole point of NAT is to be a mere temporary solution to the infamous IPv4 problem where the number of available/public IP addresses is slowly dwindling. IPv6 seems to solve these problems. NAT achieves this by translating the source/destination IP addresses and ports and makes it seem like they all come from a single IP address, but the sub-network is inaccessable to the outside world. This in fact allows multiple computers to use the service and have access to the internet.
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Objection!
NAT can also be used in a many-to-many mapping, which is handy if you want a set of devices to have a consistent internal view of IP addresses no matter what network they're actually connected to. But that's well beyond home router territory.
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-- Torkell
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