Show HN: Chitchatter – P2P chat app that is serverless, decentralized, ephemeral

Re:Show HN: Chitchatter – P2P chat app that is serverless, d... by ackbar03 on Tuesday September 06, 2022 @02:21AM (#32733608)

I was curious about this too. In my experience the real obstacle behind true p2p is everyone is behind a router or firewall these days with shared ip. Most also prevent hole punching through port randomization.

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Re:Show HN: Chitchatter – P2P chat app that is serverless, d... by jlokier on Tuesday September 06, 2022 @05:55AM (#32734975)

Tailscale comes up here a lot recently, and their article on how they do p2p over routers and firewalls (NAT traversal) is superb: https://tailscale.com/blog/how-nat-traversal-works/

Unfortunately it doesn't include statistics on how successful the strategies are in practice.

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Re:Show HN: Chitchatter – P2P chat app that is serverless, d... by synctext on Tuesday September 06, 2022 @08:33AM (#32736242)

Yes, not many people measured NAT boxes at scale. "UDP NAT and Firewall Puncturing in the Wild" [1] this scientific article from our lab might be helpful. We also have UDP puncturing also working in a 3G or wifi setting with Android-to-Android mode, see "Kotlin-IPv8" link in here: https://github.com/Tribler/trustchain-superapp

[1] https://hal.inria.fr/hal-01597969/document

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Re:Show HN: Chitchatter – P2P chat app that is serverless, d... by laserfly on Tuesday September 06, 2022 @08:29AM (#32736211)

Thanks for the link

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