El 09/05/2006, a las 17:27, Pekka Savola escribió:
2) v6 ULA address selection problems
Deploying ULAs doesn't help here, it just makes the problem worse as
you couldn't even use the 'matching scope' tweak.
Do we need to specify that v6 ULAs should be treated as "site scope"
for the purposes of default address selection, or something else?
Note that I do not believe it's sufficient to require that each site
(and each host within the site) deploys non-default RFC3484 policies.
but this seems a reasonable option...
I mean, only the end user (or the end site admin) knows if they
actually have a nat and the domain where the ulas are routable.
I may agree that today it is likely that if the host needs to choose
between a private v4 address and a ULA (wihtout any additional
information) the defaul behaviour should be to preffer the v4 private
to communicate with a global destiantion address, since it is likely
that the v4 private address is natted, while the destiantion is outside
the domain of routability of the ula
bottom line is:
ulas and private address can be used to reach a global destiantion
address heavily depending on the local setup, hence local configuration
per case is needed in the general case...
OTOH, the default settings should work for the more general case, so, i
guess that in general it is more likely to be able to reach a global
dst with a v4 private than with a ula...
regards, marcelo
--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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