> It should be possible for a mobile node to use a site-local prefix as long
> as it only ever roams within the site.  This seems to go along with the
> proposal that site-local prefixes should only be used in domains that are
> disconnected from the Internet.  If a mobile node has a global home address,
> it should use that global address all the time, I reckon.  Otherwise, if it
> only has a site-local address, then by definition it is only addressable at
> that site.  Users of such equipment should be made aware of that limitation.

Agreed when either site-locals or global addresses are used in the site.

But unless site-locals are restricted there is a case when both global
and site-locals are used at the same time and then presumably it would be
possible to configure a mobile node with both a global and site-local
address. In that case it is less clear what makes sense I think.

  Erik

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