I think this is much better, and I would not object to the text as is (modulo Ralph's suggestions). I would like to make a couple of suggestions of my own for the middle two paragraphs that you should feel free to ignore. :)

On 5/27/2011 10:51 AM, Thomas Narten wrote:
Going through this thread, here is some proposed text. I've concluded
that whether to require DHC and/or relay agents is much more nuances
than a simple SHOULD/MAY/MUST.

How about the following proposed wording:

    12.3.  Stateful Address Autoconfiguration (DHCPv6) - RFC 3315

    A single DHCP server ([RFC3315] or[RFC4862]) can provide
    configuration information to devices directly attached to a shared
    link, as well as to devices located elsewhere within a site.
    Communication between a client and a DHCP server located on different
    links requires the use of DHCP relay agents on routers.

In simple deployments with a single router there is no need for a relay agent. A DHCP server embedded within the router is a common deployment scenario (e.g., [RFC6204]).

In more complex deployment scenarios, such as within enterprise or service provider networks, use of DHCP may be more involved. For example configuration of relay agents, multiple DHCP servers, etc. In such environments the DHCP server might be run on a separate system, rather than as part of a router.




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