Re: Companies using public IP space owned by others for internal routing

[Eric Kuhnke <eric.kuhnke () gmail com>]

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 () 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 () 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