wok annotate n2n/description.txt @ rev 25734

updated sc-im (-> 0.8.4)
author Hans-G?nter Theisgen
date Thu Aug 22 14:48:42 2024 +0100 (2 months ago)
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Hans-G?nter@24944 1 n2n is a layer-two peer-to-peer virtual private network (VPN)
Hans-G?nter@24944 2 which allows users to exploit features typical of P2P
Hans-G?nter@24944 3 applications at network instead of application level.
Hans-G?nter@24944 4 This means that users can gain native IP visibility (e.g. two
Hans-G?nter@24944 5 PCs belonging to the same n2n network can ping each other)
Hans-G?nter@24944 6 and be reachable with the same network IP address regardless
Hans-G?nter@24944 7 of the network where they currently belong.
Hans-G?nter@24944 8 In a nutshell, as OpenVPN moved SSL from application (e.g. used
Hans-G?nter@24944 9 to implement the https protocol) to network protocol, n2n moves
Hans-G?nter@24944 10 P2P from application to network level.
Hans-G?nter@24944 11
Hans-G?nter@24944 12 The main n2n design features are:
Hans-G?nter@24944 13
Hans-G?nter@24944 14 - An n2n is an encrypted layer two private network based on a
Hans-G?nter@24944 15 P2P protocol.
Hans-G?nter@24944 16 - Encryption is performed on edge nodes using open protocols
Hans-G?nter@24944 17 with user-defined encryption keys: you control your security
Hans-G?nter@24944 18 without delegating it to companies as it happens with Skype
Hans-G?nter@24944 19 or Hamachi.
Hans-G?nter@24944 20 - Each n2n user can simultaneously belong to multiple networks
Hans-G?nter@24944 21 (a.k.a. communities).
Hans-G?nter@24944 22 - Ability to cross NAT and firewalls in the reverse traffic
Hans-G?nter@24944 23 direction (i.e. from outside to inside) so that n2n nodes are
Hans-G?nter@24944 24 reachable even if running on a private network. Firewalls no
Hans-G?nter@24944 25 longer are an obstacle to direct communications at IP level.
Hans-G?nter@24944 26 - n2n networks are not meant to be self-contained: it is possible
Hans-G?nter@24944 27 to route traffic across n2n and non-n2n networks.