[dhcwg] dhcpv6 source address selection policy option

Source Address Selection Policy option for DHCPv6
   <draft-hirotaka-dhc-source-address-selection-opt>

We got some comments and questions at the meeting. (thanks a lot!)

One big question was why we use DHCP where dynamic changes could be
occurred.

Our proposal in this draft is to distribute the source address
selection policy mainly at the node set up stage, and not changing the
policy dynamically.  And as Ted kindly pointed out in the meeting, we
assume the policy is static and the lifetime of the distributed policy
is bound to the address assigned to the node.

When one upstream link goes down, dynamic changes to the user network
will occur. The changes could be revoking address prefix assigned from
the failed link, and at that case, the policy bound to that assigned
prefix would be also revoked. This change is caused by the revocation
of that address prefix, and not caused by other trigger.

So, we do not assume the dynamic changes such as routing affect to the
policy directly.

I hope this could be an answer to the question John asked.

Yours sincerely,
--
Tomohiro Fujisaki, Nippon Telegraph and Telephone Corporation

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