> In practice, what are you going to do when you do a DNS > lookup for some random domain name and you get a ULA address? > Ignore it because you know it's unreachable? Try to send a > packet anyway?
You have to send a packet because that is the only way to discover if it is reachable or not. The address may be for a device just down the hall from you. Now you might want to configure your DNS proxy (resursive server) to not pass through AAAA records with ULA addresses unless they are from known sources with whom you have a prior arrangement. But that is a different issue. --Michael Dillon -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
