[dhcwg] Re: Non-unique IA-Prefix address in Advertise IA-PD

While unusual, what is in the Advertise is not mandated to being unique. It is the Reply to the Request that creates the binding, and that must be unique.

Many (probably most) seevers temporarily assign a prefix (or address) when sending the Advertise, but there is no such requirement. So, if a server doesn’t it probably keeps getting the same free prefix until a client does the Request to create the binding.

- Bernie (from iPad)

> On Jul 8, 2024, at 9:38 PM, Mukund Sivaraman <[email protected]> wrote:
> 
> Hi everyone
> 
> Is it correct DHCPv6 behavior if in an IA-PD option the same IA-Prefix
> address is advertised to several clients within the interval of a second
> so long as no client has requested it? (There are other free prefixes
> available.)  We have a dhcpd which is doing this, and I don't see any
> language in RFC 8415 preventing it.
> 
>        Mukund
> 
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