help me compare different networks using the osi model
Hello networking community
driven by the vision of a decentralised, independent and neutral network, I have set out into the depths of netowrking. I have compared different networks and tried to understand the underlying structures.
But my head is spinning from all the research and I've lost track a bit, which is why I'm turning to you. I would like to compare and categorise all these networks according to their protocols using the osi model.
I would be grateful if you could help me to fill in the following table as good as possible. You can simply copy it or write your answer in the comments.
Most of these are VPN technologies of one sort or another. These sit on top of layers 3 or 4 and encapsulate IP packets.
In other words, each packet sent to your internet provider has two sets of IP addresses. The outer set is to communicate between your computer and the VPN termination point. The second, inner set is between your computer and the service you are ultimately using.
Web traffic almost always uses HTTPS for transport, Usenet NNTP.
OSI layers 5 and 6 are not relevant in modern IP networks. If they are needed, they are provided in the application layer.
Pardon my ignorance but if I would want to get rid of the whole ISP & ICANN gatekeeping alltogether, would I have to operate on a different layer 2 or layer 3 protocol? By that I mean if it would be enough to replace the IP with a decentralized protocol like B.A.T.M.A.N or Netsukuku?
I am not sure what you mean by eliminating “gatekeeping.” ISP’s route your IP packets for you in exchange for money. ICANN provides a hierarchy for name services via DNS. You could choose not to use DNS or an ISP, but either choice would make accessing common Internet services impossible.
The experimental protocols you mentioned are routing protocols. Routing protocols communicate reachability information for groups of IP addresses, known as “prefixes.” IP itself is a routed protocol, like any layer 3 protocol in the OSI model. It provides a standard by which computers can communicate across a large internetwork.
It is possible that a peer-to-peer routing protocol would enable you to access the Internet without a network connection of your own. But for that service to be useful, someone somewhere in the mesh would have to connect to the rest of the global Internet through a service provider. Otherwise your network is isolated, like a group of desktop computers plugged into a standalone switch, with no router to send packets to the Internet.
What specifically do you find objectionable with ISPs or ICANN?