IPv6
IPv6 (IP Version 6) is the "Next "Generation" of the Internet Protocol that will solve the problem of depleting network addresses by extending IP addresses from 32 to 128 bits. There is no direct comparison between IPv6 and NAT, except for the relation that NAT is delaying the implementation of IPv6.
Advantages of IPv6:
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larger address space |
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efficient and extensible IP datagram |
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efficient route computation and aggregation |
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improved host and router discovery |
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mandated new stateless and stateful address auto configuration |
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mandated security for IP datagrams |
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easy renumbering |