On 06/05/2020 16:41, Paul Bone wrote:
Public IPv4 addresses direct on PCs, Mobile Devices on Guest Wifi
Networks, internal Printers.... I have seen this with my own eyes.
There is nothing wrong with this. And the universities aren't going to
change this unless there is an economic driver to do it.
And if the university was going to stay IPv4 only and do RFC1918, they
would need a massive Carrier grade nat infrastructure. These guys have
big connections and so would be really expensive. And loads of ports.
You can't stick 5000 users behind 1 IPv4 and have it work. Plus these
guys have loads of departments who run their own networks, vlans,
partner institutions ........ scope for conflict between 1918 space is
massive.
And nat introduces single points of failure, unless you spend even more
money.
What might happen is something like this:
1) university deploys IPv6 (presume dual stack)
2) Cost of CG nat comes lower as bandwidth use and number of ports in
use on IPv4 reduces. (because many of the big bandwidth hogs are V6
enabled)
3) Price of IPv4 keeps rising
4) There becomes an point where the sale price of IPv4 becomes 10 times
higher than the hassle of renumbering, natting and IPv6ing. And the uni
might sell some space. But they will still have an IPv4 network which
wasn't as good as it was before.
(there are probably loads of other orgs sat on IP space who would sell
first)
Otoh, one could just find a strugging hosting company with some IPv4
allocations. Buy them. Do a Mythic and find the users who don't really
need a IPv4 address. Reuse and sell on. (except it looks like Mythic
have already practiced at this, so others can play catchup at the back.
There's a uknof talk or 2 all about it. )
It's kind of like the same story as a housing developer who buys a
knackered bit of waste land and builds 50 flats.
In summary, there is an IPv4 market. Just like there is a market for
land/housing. And a market for gas (there didn't used to be a market
for wholesale gas in europe, but that's another story)
--
Tim Bray
Huddersfield, GB
[email protected]
+44 7966479015
