Oliver Hartkopp wrote:
> Hallo David, hello Herbert,
>
> indeed i have some concerns about reverting the patch as i do not see
> that the MTU is the right thing to distinguish whether a netdevice is
> capable to have IPv4/IPv6. E.g. is decnet able to run IPv6?
>
> IMHO the autoconf (in any case) should only handle netdevices that are
> capable to be auto configured (e.g. with IPv6).
>
> So the question looks like:
> "Is this device capable to be auto configured with IPv6?"
> and not
> "Is the devices MTU >= IPV6_MIN_MTU ?"
No, the questions should really be:
1. Is IPV6 supported over this media type.
yes: got to 2
no: stop
2. Is the device MTU >= IPV6_MIN_MTU
yes: continue
no: stop
Autoconfiguration is a layer on top of IPv6. Whether it's enabled
or not should not dictate whether IPv6 addressed may be configured or not.
-vlad
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