| IPv6 |
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| n | Extended
addressing capabilities: 128-bit address |
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| field
and other improvements. |
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| n | Simplified
header format: Some fields of IPv4 are |
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| dropped
or turned into options |
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| n | Improved
support for extensions and options: |
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| flexibility
and ability to introduce new options |
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| n | Flow
labeling |
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| n | Authentication
and privacy |
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