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Life & fun · December 2, 2023

DA

DN42 – a free, BGP-routed VPN

DN42 – a free, BGP-routed VPN launched on December 2, 2023 with 7 votes, #1,211 of 3,780 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 2 years on.

What it does

dn42 is a large, dynamic VPN that employs Internet technologies ( BGP , whois database, DNS , etc.). Participants connect to each other using network tunnels ( GRE , OpenVPN , WireGuard , Tinc , IPsec ) and exchange routes using the Border Gateway Protocol. Network addresses are assigned in the 172.20.0.0/14 range with private AS numbers (see registry ), as well as IPv6 addresses from the ULA range ( fd00::/8 ) - see FAQ . A variety of services are available on the network, only accessible from within dn42. dn42 is also interconnected with other networks, such as ChaosVPN and various Freifunk networks. dn42 can be used to learn networking and to connect private networks, such as…from dn42.dev

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