How to access internet from HYPER-V guest machine which uses IPv6 Only?

05
2014-04
  • Chedy2149

    I have Windows Server 2012 installed in my laptop with Hyper-V activated.

    I have a wireless network interface with which I can connect to the Internet from the physical machine as well has the virtual machines(using external virtual switches) with IPv4 addressing.

    What I would like to know is how to connect IPv6 only VMs to the internet throught the wireless interface given that the wireless interface must be addressed in IPv4?

    Should I use NAT64 and DNS64 and if so how?

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    networking - IPv6 - Public IPs, private IPs, IPs derived from the MAC address? Confused!
  • sinni800

    I'm pretty much excited for IPv6 because of the large address room and (potential?) owning of more than one IP, or even tens of IPs (/122 subnet?)

    Though one magazine has now confused me.

    In a current issue (no. 3) of "CT", a German computer magazine, I read that when using IPv6 your IP address consists of your MAC address and various other things, and that this address will be public on the web, no matter what access point / LAN you connect to.

    My knowledge of IP(v6) is in contrary of this. I thought you will normally always have a a local network IP and NAT takes care of your Internet access, and your provider gives the NAT router an IP.

    I've heard of the 6to4 interface, but does this one give you your own ip in the IPv6 net?

    Personally I hope it still is through a personal IP space (like 192.168, 127.16-31, 10. in IPv4) in private networks with a NAT going to the Internet. And also I hope that providers will offer subnets to private customers so they don't have to use NAT anymore. Yay for converting your LAN into the WAN and using better security (so Computers from the same subnet still get access rights like normal).


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  • Olli

    Your magazine is right. IPv6 address consists of two parts: network prefix and host address.

    If host address is not assigned, then computer autogenerates it, usually by using MAC address. Which means your IP includes something that uniquely identifies you, not depending on what network you are using.

    See for example Wikipedia page for more information. There is also another post in superuser.com explaining how to disable using MAC address in different operating systems.

  • Brian

    There is no "private" IP addresses in IPv6. (There is LinkLocal, but that is a bit different).

    NAT Will no longer exist. Most companies trialing it, such as comcast, are giving out 32 bit addresses to each consumer modem. that would give you 4 billion IP addresses to use with your connection. (right about how many IPv4 Addresses there are in the world right now)

    Firewalls will still be critical, but will not have to do NAT anymore. Things like person to person video chat will really work correctly.

  • Tacticious

    There are only public IP addresses in IPv6. Thus, no NATing will be required at all.

    The smallest block of IPs possible will be in the thousands, not just a few. Each person will be allocated thousands of IPv6 addresses.

    There will be enough IPv6 addresses for every molecule on the face of the earth to have its own address (not inside the earth as well, just the face).