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How do I use my /64 IPv6?
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How do I use my /64 IPv6?

elgselgs Member
edited July 2015 in General

I got a /64 block of IPv6 addresses on my server, which is 2^64=18,446,744,073,709,551,616 addresses. I don't even know how to read it. I'm wondering what I can do with such a scary number of addresses? I literally need to be educated about the IPv6.

Comments

  • KuJoeKuJoe Member, Host Rep

    SOP for IPv6 is assign one to your device to use and talk about how many you have left over on social media. :)

  • Is there a way to set my server to listen on all /64 addresses, but to use a random address as the outgoing ip?

  • KuJoeKuJoe Member, Host Rep

    @wwabbit If you like slow reboots and using a lot of RAM I'm sure you can.

    Thanked by 1gestiondbi
  • sinsin Member

    I usually just use an IPv6 for nginx as I do get some visitors that use it.

  • doghouchdoghouch Member
    edited July 2015

    @KuJoe said:
    wwabbit If you like slow reboots and using a lot of RAM I'm sure you can.

    Add this: 24/7 maxed out CPU core(s)

    [Linking that many IP addresses to one server would cause CPU, RAM, and SSD/HDD suicide (assuming that the network connection isn't saturated yet).]

  • MaouniqueMaounique Host Rep, Veteran
    edited July 2015

    KuJoe said: @wwabbit If you like slow reboots and using a lot of RAM I'm sure you can.

    It is not possible. I mean you can do it, but will not work.

  • randvegetarandvegeta Member, Host Rep

    why would you even want to?

    With a router you can forward the entire /64 to a single address.

  • Hurricane Electric has some learning resources for IPv6. Take a look here - https://ipv6.he.net/presentations.php

    Thanked by 3elgs gestiondbi wwabbit
  • gestiondbigestiondbi Member, Patron Provider

    HE also have a training/certification program to learn some few things step by step: https://ipv6.he.net

    Thanked by 1wwabbit
  • tomletomle Member, LIR

    +1 on the HE certification program (you even get a t-shirt ;) )

    Thanked by 1DianTama
  • Count them. Print them.

    tomle said: (you even get a t-shirt ;) )

    That as well. Have the full /64 printed in a t-shirt. Badass!

  • linuxthefishlinuxthefish Member
    edited July 2015

    Assign one to every item in your house, to prepare for when they are internet of things compatible.

    EDIT: Tunnel a /56 to your house and use that!

  • TrafficTraffic Member
    edited July 2015

    linuxthefish said: Assign one to every item in your house, to prepare for when they are internet of things compatible.

    Thanked by 1linuxthefish
  • @elgs said:
    I got a /64 block of IPv6 addresses on my server, which is 2^64=18,446,744,073,709,551,616 addresses. I don't even know how to read it. I'm wondering what I can do with such a scary number of addresses? I literally need to be educated about the IPv6.

    Assign one to your VPS but try and figure out cool words you can create using 0-9 and a-f

  • ChuckChuck Member

    Is there a way to run multiple VPNs using /64 IPv6 on a VPS?

  • elgselgs Member

    @hostnoob said:
    Assign one to your VPS but try and figure out cool words you can create using 0-9 and a-f

    One of them could be cafe:babe. :)

  • elgselgs Member
    edited July 2015

    I'm actually wondering technically why some people says subnet smaller than /64 is not really useful.

  • rm_rm_ IPv6 Advocate, Veteran
    edited July 2015

    elgs said: I'm actually wonderful technically why some people says subnet smaller than /64 is not really useful.

    1) You are actually wonderful :3

    2) Because SLAAC requires a /64 per LAN to work, and IPv6 without SLAAC is more cumbersome to set up and use e.g. for a VPN (you will need to statically assign everything, or set up DHCPv6).

    Thanked by 2elgs Shot2
  • elgselgs Member

    @rm_ said:

    OMG, I mean wondering. :)

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