IPv4 smaller than /24 leasing?

[fhr at fhrnet.eu (Filip Hruska)]

Thanks for all the responses!

Seems like I was right about doubting this.


Regards

--
Filip Hruska
Linux System Administrator

Dne 1/4/18 v 20:20 Matt Harris napsal(a):
> They're probably using GRE or other sorts of tunnels, I'd imagine?  It 
> would likely involve increased latency, as any packets coming to those 
> addresses would hit them first, and then be tunneled - either over the 
> public internet using gre or some kind of vpn, or perhaps via a 
> private connection or even an IX, to you?  As far as outgoing traffic 
> from those addresses, you'd probably need to make sure that any 
> upstreams you're sending packets to from those addresses are not 
> running urpf which would cause them to be discarded, or otherwise get 
> around such a configuration.
>
> Take care,
> Matt
>
>
> On Thu, Jan 4, 2018 at 1:13 PM, Filip Hruska <fhr at fhrnet.eu 
> <mailto:fhr at fhrnet.eu>> wrote:
>
>     Hi,
>
>     I have stumbled upon this site [1] which seems to offer /27 IPv4
>     leasing.
>     They also claim "All of our IPv4 address space can be used on any
>     network in any location."
>
>     I thought that the smallest prefix size one could get routed
>     globally is /24?
>     So how does this work?
>
>     [1] http://www.forked.net/ip-address-leasing/
>     <http://www.forked.net/ip-address-leasing/>
>
>
>     Thanks
>
>     --
>     Filip Hruska
>     Linux System Administrator
>
>
>
>
> -- 
> Matt Harris - Chief Security Officer
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