[LEDE-DEV] [PATCH odhcpd] dhcpv6-ia: add option for dhcpv6 privacy address

[Paul Oranje]

> Op 11 mrt. 2017, om 14:09 heeft Bjørn Mork <bjorn at mork.no> het volgende geschreven:
> 
> Paul Oranje <por at xs4all.nl> writes:
> 
>> Small addition (the following may be non-obvious to those not involved
>> in this discussion).  Just saw that A_TA does not have renewal (T1) or
>> rebinding (T2) fields and for that reason cannot suit a use-case like
>> a IA just for a work shift.
> 
> RFC 3315 section 22.5:
> 
>   An IA_TA option does not include values for T1 and T2.  A client MAY
>   request that the lifetimes on temporary addresses be extended by
>   including the addresses in a IA_TA option sent in a Renew or Rebind
>   message to a server.  For example, a client would request an
>   extension on the lifetime of a temporary address to allow an
>   application to continue to use an established TCP connection.
> 
> 
> But I'm not convinced temporary addresses fits that use case.
The use-case that Eric gave as an example - as I understood it - concerns policies that are enforced at the server side; at the client site “management" cannot enforce anything.

> In any case, there are existing client implementations of IA_TA (for
> example ISC dhclient and dibbler) and RFC7721 stable IIDs (for example
> Linux kernel and NetworkManager).
Maybe you can create a patch that would implement IA_TA in odhcpd, if that isn’t implemented yet (I do not know, have a look at the code).
That would satisfy another use case.

> 
> 
> Bjørn
> 
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