On 28-sep-2007, at 20:00, DE JUAN HUARTE FEDERICO wrote:

If a network administrator decides to set the M bit meaning that it intends to always manage the address configuration, can he expect all hosts to support the DHCP functionality?

In other words, is DHCP a MUST implement for IPv6 hosts?

Note that these are separate questions. The latter has already been answered.

As to the former: no, it's certainly not true that all hosts support DHCP. And the ones that do, may support one, two or three of the following capabilities:

- other configuration (such as DNS server addresses)
- prefix delegation
- address assignment

I would be interested in hearing about anyone actually using DHCPv6 address assignment. Two years ago when I wrote my book about IPv6 I couldn't find any servers or clients that supported this. I gather this has changed, but I'm not sure to what degree.

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