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Well, if it were compressed; the common factor is the PREFIX. I'd assume that the IP addresses were stored in a non-retarded way such as how IPv6 is actually designed to be stored:
Etcetera.
Hence it's inevitable.
How do you save these IP's so they can be used after reboot? And how do I add them to proxmox, using vmbr0?
Is this still correct that you get more then one ipv6?
A fact about IPv6 size I read awhile ago was that if the IPv4 address space was the size of a credit card, the IPv6 address space would be the size of our solar system. Since I'm bored, I figured I'd try to verify that.
IPv6 = 2^128, IPv4 = 2^32. Divide one into the other and you see IPv6 address space is this many times bigger than IPv4:
79,228,162,514,264,337,593,543,950,336
A credit card is roughly 2x3 inches, or 6 square inches. So multiply the previous number by 6 to get the IPv6 size in square inches:
475,368,975,085,586,025,561,263,702,016
That's a big number, so let's convert to square miles:
118,413,303,421,083,971,810
Still too big, how about square Astronomical Units:
13,704
That's roughly the area of a circle with radius 66AU.
Pluto's orbit takes it as far as 50AU from the sun (roughly).
So we're talking a circle that is MUCH bigger than the orbit of Pluto (especially when you consider that Pluto has a very elliptical orbit).
So the next time you're worried that we're going to run out of IPv6 addresses...don't.
On a side note, http://joshworth.com/dev/pixelspace/pixelspace_solarsystem.html is a pretty cool page showing how big the solar system is.
Thank you. I now totally get how large the address space is, being an export on the size of Pluto and all (which apparently isn't a planet anymore...).
/sarcasm (<- for those that didn't get it)
Why are you asking, did you try adding more than one and it didn't work?
I don't have a Kimsufi anymore to check, but I don't expect them to change anything in this aspect.
He's talking about the size of Pluto's orbit, not the size of the oh-it-is-not-a-planet-anymore Pluto. It does makes a huge difference, but here's an image to help with the visualization, for the ones who didn't get it
I know the comparison isn't for everybody. I found it interesting, so I thought I would share. I guess I figured the majority of the readers here will have taken elementary school science by now
Did anyone ever find a way of setting the reverse DNS for the other IP's in the /64?
Thanks,
Ian
Not possible sadly.
Once you've successfully added a bunch of IPv6 addresses to your interface (and correctly set them in DNS), it IS actually possible to set the PTR (reverse) for any and all of them...
Hints:
use a modern browser e.g. Firefox
use the 'old Manager V3' interface, currently being phased out
there, go to the (old) page where to create a reverse for an IPv6 address
right-click + 'Inspect Element' on any of the - seemingly uneditable - last four hex digits
watch the related html code: notice how each of the four "input" tags has a "readonly" attribute...
... now edit the html code wisely
OVH's terms of use yaddi yaddi yadda... Proceed at your own risk
That is amazing/horrifying.
Always trust user input...eh.
Google had the same problem recently, letting someone register google.com momentarily using their own domain registration service.
I'd expect OVH would plug this quickly, if they care enough about it.
IIRC people ordering today only have a Kimsufi account, not an OVH account, and do not have ManagerV3.
Yeah, 16GB of RAM just twiddling thumbs on ks3.
Is the overhead for NAT ipv4 KVM that significant?
I want to use VMs for proper isolation against privilege escalation and containers for anything else.
Not exactly similar in spirit though : abusing a weird security bug at Google's vs. circumventing an unexplainable limit as for OVH. I would personally feel bad in the first case, not in the second case.
Actually if OVH care enough about their service and the internets as a whole, they would let you use and set reverse records for the full /64 allocation (rather than the current nonsensical /128)
@rm_ good point, it works only for those pre-2014 (?) Kimsufi deals.
Could we get "banned" because of using these IPv6 addresses without permission?
I've been doing this on my Kimsufi since late 2014 and never got banned, assigning a /64 per server is really the only sensible way and OVH know it.
It could conflict with others, just at the moment doesn't appear to. Its "works" in that the whole /64 is in the same vlan on switch that cables into your machine
Just because they've assigned you ::1/128 doesn't stop them assigning the ::2/128 to another user or splitting the /64 into /112s all in different vlans etc
But they do not. They allocate a /64 per user, then tell you to only use the 1st IP. There is no technical reason for this, other than the fact they want to differentiate Kimsufi as unfit for more serious uses such as VMs, and they want you to buy SoYouStart if you want "multiple IPs". This is greedy and clueless. There is no issue for anyone if you start using more than one IP from the range that's been allocated to you, and the only reason they might start chasing you down for this is entirely commercial (i.e. the same greed), and really, I don't think they will bother.
Wow, a 2+ year old thread. I'm surprised it still works.
thx. debian.
I have tried this on one of my KS-2 and worked fine.
Just setting up KVM VPS with IPV6 only and its work great (using Webvirtmgr).
I am using the regular bridge on CentOS 7 (host node).
ifcfg-eth0:
Ifcfg-br0:
route6-br0:
When installing the KVM guest OS we need to setup the IPV6 manually.
@rm_ how can we add rDNS for these IPs? The SOAPI fails to login (with both NIC Handle and email), the OVH API won't login, and the Kimsufi API says that the IP doesn't exist (because this API connects straight to the Control Panel, and only the ::1 IP is listed there. Have you figured out a way to have rDNS?
so
pretty sure that you can't.
Make it belive it does exist.
Dies it support deep learning?
Has anyone had luck entering these into the proxmox control panel? It doesnt seem to be accepting the format. Someone's linked a tutorial above, but it's not accepting that format.
Note that while they allow more than 1 IPv6 address, it appears they do not allow more than one MAC address. I'm not sure if it's a recent limitation. So you will not be able to run VMs with bridging, only with routing (and using ndp proxy).
From https://otacon22.com/2016/02/21/two-hosting-providers-ipv6-setups-compared-ovh-online-net/ it seems you can use the full /56, and as such you can fuck over 255 of your neighbors.