Re: IPv6 Capable and IPv6 ONLY for Scenarios

["Christian Strauf (JOIN)" <ipng@uni-muenster.de>]

Hi Jim

> IPv6 capable does not imply or preclude IPv6 ONLY.  Does anyone
> disagree?
This is the way it should be ideally. I've seen cases though where an
IPv6 capable OS and also IPv6 capable applications do not work in IPv6
only environments.

> IPv6 ONLY should only mean a node that has NO IPv4 stack to process IPv4
> packets?
My impression is that in a lot of cases it makes sense to clearly
differentiate between IPv6 only stack and IPv6 only connectivity
(sometimes you can see people talking about IPv6 only hosts where the
hosts are dual-stacked but have IPv6 only connectivity) because pinning
IPv6 to either the stack or the connectivity can be ambiguous. In some
transition scenarios it makes quite a difference if you have a
dual-stack host with an IPv6 only connection or a IPv6 only stack host
with an IPv6 only connection.

> To reference a network that is IPv6 capable can imply IPv4 is possible
> but not used or use is limited.  Or IPv6 is not turned on or IPv6 is
> limited.
At the moment my understanding is that the last case (IPv6 is limited)
is meant when talking about an IPv6 capable network and only the number
of limitations varies from network to network. If IPv4 and IPv6 is
equally well supported ("fully IPv6 capable network"), one would rather
talk about dual-stack networks, wouldn't one? Just my 2-€-cents.

Christian
-- 
JOIN - IP Version 6 in the WiN  Christian Strauf
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