Companies using public IP space owned by others for internal routing

Eric Kuhnke eric.kuhnke at gmail.com
Mon Dec 18 04:31:22 CST 2017


some fun examples of the size of ipv6:

https://samsclass.info/ipv6/exhaustion-2016.htm

https://www.reddit.com/r/theydidthemath/comments/2qxgxw/self_just_how_big_is_ipv6/

On Sun, Dec 17, 2017 at 7:05 PM, Large Hadron Collider <
large.hadron.collider at gmx.com> wrote:

> Missent.
>
> Welcome to IPv6, where you have technically-reserved-for-future-use space
> that should never actually need to be used. Quite likely, you can use
> something like 440::/16 as your private space, but please don't do that
> unless you've exhausted the true private space.
>
> You're welcome.
>
>
>
> On 17/12/2017 14:57, James Downs wrote:
>
>> On Dec 17, 2017, at 14:33, Matt Hoppes <mattlists at rivervalleyinternet.net>
>>> wrote:
>>>
>>> Had a previous employee or I discovered it on the network segment after
>>> we had some weird routing issues and had to get that cleaned up. I don't
>>> know why anyone would do that when there is tons of private IP space.
>>>
>> Unless there isn't.. I've worked at more than one company that had used
>> up all the private space. Then you have the cases where some M&A causes
>> overlapping IP space. In addition, you'd also be surprised how many people
>> just assign the entire 10/8 space into a flat IP space.
>>
>> -j
>>
>
>


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