> Once you *know* that a host has a site local address, the
> address selection draft tells you when to use it. I've always
> assumed that they would be in the DNS along with global addresses.
> Presumably large sites will be running two-faced DNS anyway, so
> these addresses will never go outside.
>
The other think I recall, though, is that somehow the reason for using
site-local addresses is explicitly to avoid using two-faced DNS. (If one
were using two-faced DNS, then the better approach would be to use some kind
of globally-unique but non-ISP assigned prefix. You'd use this prefix for
internal traffic only, but since it is globally unique, you wouldn't have
the renumbering problem you have when using site-local addresses when you
merge two sites.)
PF
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