111 lines
4.7 KiB
Markdown
111 lines
4.7 KiB
Markdown
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<div class="center">
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<img src="./img/logo.png" class="crxn_logo">
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</div>
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# What is it?
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<img src="./img/map.png" class="floating_right">
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CRXN stands for **C**ommunity **R**un e**X**pansive **N**etwork. It's a computer network _run by the community for the community_.
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We provide an IPv6 (that's the freshest Internet Protocol out there to date) and on CRXN anything that can speak IPv6
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will be able to function correctly - a network without borders! We are focused with having a network that really focuses
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on the "end-to-end" principal of IP - that is to say that if you want to run something and make it available to other then
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you won't have to worry about NAT-traversal, port forwarding, lack of raw IP support and all the other non-sense that IPv4
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created (due to lack of addresses).
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<img src="./img/logo.png" class="crxn_logo pic_left">
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Compared to the clearnet (normal Internet) there isn't much fuss involved around getting
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a network ID assigned to you and so forth, we truly are for the community and all our members take some of their own time
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to work on their network and the greater CRXN inter-network as a whole.
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It's a great place to test out new protocols, networking projects, play games, exchange ideas and learn about networking,
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routing and network sub-systems themselves. You also get to learn how CRXN is put together which is a great way to learn
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networking with those that run networks already themselves.
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## Our goals
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The network has a few goals that we always want to maintain as to not lose our allure:
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1. Be a network for learning
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* We don't want to shun people away from using some new
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routing protocol as it might be cool and interesting to
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learn
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2. Be reliable
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* Of course when learning people should also make sure
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their routers don't just accept any route without making
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sure its valid - hence network operators should make sure
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their networks operate even when some are causing mayhem
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(malicious or learning by trial and error)
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* Also shouldn't be painfully slow
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3. Diverse routing
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* We want to try out protocols like **ospf**, **babel**, **bgp**
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and so on and so forth
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* We want to build a network out of a mix and match of these all
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working in harmony together
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* Monocultures suck!
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4. Usable
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* We have DNS, we have voice chat servers and we have IRC (we
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even have gaming!) but we can always do with much **much more**!
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* We want the users, _you_, to make the network usable for your
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needs - who knows it might provide a service that helps out
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someone else
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5. Peering
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* We want people to setup redundant links using whatever protocols
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they want, be it **wireguard**, **GRE**, **fastd** etc.
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* We want there to be interesting links and diversity
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6. _Chaos and Order_
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* The network should never stop experimenting
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* But it should have 99% uptime and safety fallbacks
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* If you want to experiment - then go ahead and try cause
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as little disruption as possible
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* If you run a node - make it secure - sign routes etc.
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to prevent others from experimenting from messing your
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network up
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We aim to create a more open Internet available to everyone and a place to learn about IP routing and networking in general.
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We don't use any particular tooling, the only thing that is standard is the IPv4 and IPv6 part. What tunnelling software, physical
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mediums or routing daemon you choose to use is up to you - this falls in line with our _open_ ethos.
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## About the network
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A few details about the network.
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### Protocol support
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We only use IPv6 on CRXN because it has many features, such as link-local addresses, that make
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setting up dynamic routing protocols near-zero-config.
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It's also the modern way of the Internet and means you will get a large space of addresses
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assigned to you.
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### The range
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The IPv6 range we use is the private range of `fd00::/8`.
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### Assignments
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Users get allocated a `/48` (like `fdd2:cbf2:61bd::/48`) IPv6 ULA within the `fd00::/8` range (by definition).
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We keep track of allocations on a Git-based repository called [_EntityDB_](https://codeberg.org/CRXN/entitydb).
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## Getting started
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### Joining the network
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Does it sound interesting enough for you already? Want to get connected? Then head on over
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to our [Getting started] section where you can find all the guides you need in order to get connected,
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follow the rules and have fun!
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---
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## Important links
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Some important links to remember.
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* The CRXN homepage is: [http://deavmi.assigned.network/projects/crxn](http://deavmi.assigned.network/projects/crxn)
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* The **EntityDB** repository is: [https://codeberg.org/CRXN/entitydb](https://codeberg.org/CRXN/entitydb)
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* This documentation is at: [https://github.com/Community-Run-eXperimental-Network/docs](https://github.com/Community-Run-eXperimental-Network/docs)
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