Re: Not an issue if you already have an ipv4 address
""you can't really use it without a DNS; the addresses are impossible."
Yes, this is a rather serious downside to IPV6."
Well with IPv6 you can have "vanity addresses". For example "Fefes Blog", one of the largest German blogs has the IPv6 address 2001:4d88:3508::fefe:b106. Since the 2001:-prefix is almost universal, you end up with "4d88:3508" you actually need to remember. Those are 32 bits and therefore just as much information as an IPv4 address.