Minor
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* Section 3.1 Second Paragraph

Looks like there is a minor error in the DHCPv6 option handling. Suggest fixing this

OLD:

This means that the advertised "Preferred Lifetime" and "Valid Lifetime" MUST be dynamically adjusted

NEW:

This means that the advertised "preferred-lifetime" and "valid-lifetime" MUST be dynamically adjusted

* Section 3.3

Are there any recommendations for the T1 and T2 times for the DHCPv6 IA options? Or is the expectation that they will be set to 0.5 and 0.8 of the shortest preferred-lifetime inside the IAs?