Hello Mario, please find my answers below:
On 29 Jul 2021, at 22:04, Mario Lorenz via 44Net
<44net(a)mailman.ampr.org> wrote:
Dear Antonios,
Am 28. Jul 2021, um 00:31:52 schrieb Antonios Chariton (daknob) via 44Net:
Fellow radio amateurs, I am writing to you on
behalf of the ARDC TAC, which I represent.
Those of you that were on our Community Call last Saturday may remember that I promised
you we would share our first proposal with the community. A few days after that, I am
happy to send that to you for your review, feedback, comments, questions, and
information!
You can find our 5-page PDF here:
https://pdf.daknob.net/ardc/tac128.pdf
<https://pdf.daknob.net/ardc/tac128.pdf>
The title is "ARDC 44.128/10 Allocation Proposal” and it briefly explains what we
propose to do with the IPv4 space of ARDC. It is based on careful consideration, planning,
and actual research[1] performed on the IP network and the Portal allocations.
I have read the proposal, and would like to ask for clarification on a
few points. These points possibly may have been covered in some
discussions on the 44-ngn list, so I wanted to review possible discussions
there, but the link to the archives of that list on
www.ampr.org is currently
broken.
a) How do you define the "[amateur] radio network" as used in the first
paragraphs of your proposal? Is there a difference to the term
"Intranet for radio amateurs" as used in your proposed ARDC resolution?
These are equivalent. The radio network and the Intranet are the same for the given
context. Think of it like using amateur radio frequencies vs 4G / 5G frequencies. This is
the first point.
The former reads like a description of involved
hardware/systems, while
the later describes its users (licensed radio amateurs).
We do not want to limit the hardware, but we would like to have an IP version of the
frequency plan: 44.128/10, however you connect to it, is the radio amateur band, and
44.0/10 is the commercial 5G band or the ISM band of WiFi. One is for people that are
licensed, and the other is simply the Internet that anyone can use.
The former could also be read as a policy/guarantee
that no
non-amateur-radio based means of communication are involved.
Is that intended ?
Yes, correct. One of the things that this proposal can bring is that a part of the network
is reserved for radio amateur to radio amateur communication.
I note that you also use the term "radio-only
network" on page 3.
Since 44.0/9 according to your proposal is not "radio-only", this
would mean that 44.128/12 should not be accessible from 44.0/9, which
is the opposite to your proposed resolution.
This is actually (part of) the proposal. That we guarantee that people in 44.128/10 can
only be reached by other people there, and people in 44.0/10 (technically /9) can be
reached from the entire Internet, except 44.128/10 (natively). This is similar to how only
radio amateurs can transmit in a ham band, but everyone can transmit to an ISM band
(including hams).
b) Which route do I need to put into my router to
address the radio
network ? In particular, how can you answer this question without
considering the specifics of each individual case ? Why would there
be only one route?
You can address the “radio network” with a single route: 44.128/10. This proposal
guarantees that everyone there will be on the radio-only network, the same way
transmitting to 144-146 MHz in the EU is to reach hams only. Any traffic you receive is
(should be) from a ham, and you should only send anything if you are a ham, and you intend
to reach other hams. Transmitting to 2.4 GHz in the ISM band allows you to talk to more
people (anyone), but also anyone can talk to you.
c) Can you back up the "originally
intended"
claim somehow ? I note that net-44 originated in the USA, which
historically has rather liberal third-party traffic rules compared
to other countries,
We probably have a lot of people in this mailing list that were even a part of this and
can speak up, but this happened before the Internet was (broadly) adopted and the 44/8 was
a way for this “Internet” project some people were working on to talk to this network of
these “radio amateurs” that they set up in the USA or Europe, etc.
d) You propose a policy of not announcing the prefix
on the internet.
"the prefix" is presumably 44.128/10. Do I have to understand this as
going back to pre-2012 (no direct BGP) or pre, uh, 1990 (someone
remind me please when mirrorshades started providing encap tunnels and
announcing 44/8).
Yes, correct. This proposal wants 44.128/10 to not have any direct BGP allocations that
appear on the Internet. Connectivity of these networks should happen between themselves
(network to network VPN, radio links, …), the ARDC (or anyone else’s) PoPs, etc. and they
will not communicate through the open Internet.
e) Is there a rationale why existing regional networks
cannot decide
themselves what level of internet connectivity they desire,
considering e.g. the local ham radio regulations
and keeping their numbering and infrastructure which have been
assigned to them long before ARDC existed as an entity. Is there
a particular reason for not grandfathering them ?
Unfortunately this would be difficult to accommodate as the guarantees cannot be offered
then. If radio amateurs don’t have a dedicated band to talk to each other, and they have
to use the ISM bands, there’s no way to distinguish between normal people and licensed
hams. You can’t tell and there’s no guarantee that the person you’re speaking with is a
ham or anyone else.
Similarly to the RF world, in IP there’s this kind of problem as well. If you have IP
addresses on the Internet, you could receive traffic from anyone. Sure, you can use an ACL
or a firewall, but that’s not guaranteed. Packets could be spoofed for example. If you
have a special network where you know that all senders and recipients are hams, then you
can build things with different assumptions. You can build internal tools or apps,
websites, etc. It’s up to you. It’s a band where you will only find people of the same
hobby as you, that are licensed.
The other part is like an ISM band. Sure, you can use this to talk to other hams, and you
can use it to talk to non-hams, and non-hams can use it to talk to you, and you have to
establish by your own means who is who, and ensure that they can’t trick you.
What our proposal aims to do is to create a separate “Ham Band” / Intranet / 44.128/10 and
a separate "ISM band” / Internet / 44.0/9. By using simple RF or IP you can’t have
them collocated into the same space.
This is the reason why we cannot have scattered space and we want to have it aggregated
and easy to address. Instead of our “band plan” being hundreds of lines and have it change
daily, and move band from “ISM” to “Amateur Radio” and vice versa, we want to create a
very simple band plan of 2 entries that don’t change. One is, and will remain to be “ISM”
(44.0/9) and one is, and will remain to be “Radio Amateur” (44.128/10).
Having a more stable and simple band plan is easier for everyone. They can make more
informed decisions for the future, they can choose who they want to talk to, and they can
even decide to use both bands: use a handheld radio (Radio Amateur) and a phone with WiFi
(ISM). This is what we try to do on a technical level. Clearly define the two bands, and
make sure that they are very few, and very stable.
In the IP world this translates to easier routing (each “band plan” entry is a route, and
if it’s just one, it could even be a static one), and less frequent changes. I don’t have
to consult today’s band plan to know why 44.5.5.5 does not respond from 44.128.128.128, if
the reason is that 44.5.5.5 decided to be Internet-only today or Intranet-only tomorrow.
We could have made use of complex routing protocols and policies that would dynamically
try to discover what each address or subnet is (because it’s not always clear and we can’t
always tell what each address wants to do, even if we forced everyone to connect to an
ARDC PoP) and then continually adjust this and maintain a complex state. This is something
that a lot of people would also have to do, or they would have to find someone to do it
for them (e.g. the ARDC PoPs). Going towards our value of being as inclusive as possible,
we did not want to force people that don’t want to to have to do this or to have to
connect via an entity that can do this. By having a 2-line band plan that doesn’t change
over time people can even hard-code it if they don’t want to deal with all of this
complexity or necessarily rely on someone to do it for them and then form a dependency to
them.
Furthering the analogy, a handheld VHF manufacturer relies on a constant band plan to
allow TX to 144-146 MHz and doesn’t have to build a system for their product to download
this hour’s or this day’s Amateur Radio allocation and change the functionality based on
that. You can also be sure that your local amateur radio repeater won’t be today at 89.7
MHz and your favorite radio station won’t transmit to 145.500 MHz this afternoon.
f) Would proposed resolution #5, if adopted, direct
ARDC to fund
AMAZON's network connectivity ?
[OK, I don't expect an answer, but ask to consider it as an example that
far-reaching proposals must be worded *very* carefully]
That’s an interesting point, and we could look into improving the language, but we thought
that the “TAC-proposed Global PoP Infrastructure” was specific enough to prevent
ambiguity. In any case, I imagine that after we deliver our proposal to the ARDC Staff, it
will be vetted by both them, and the Board, to avoid problems like that. Thanks for
mentioning it though!
I hope this clarifies it enough for everyone,
Antonis