Genuine question, as I'm fairly ignorant with regards to IPv6 - in what scenarios would that be an issue?
We are running out of IPv4 addresses. Some ISPs only provide IPv6 to their customers. If they want to access a service that is IPv4 only they get tunneled through an IPv4 gateway which slows down their connection because it is shared with other customers. That relieves symptomes but doesn't solve the real problem we face. Every service should be reachable by IPv6 to be state of the art and future proof.
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