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How important is port forwarding, actually?
(lemmy.one)
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this post was submitted on 01 Jul 2023
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It is not required but you will have a much better torrenting experience by being connectable (port forwarded). When you are fully connectable you are able to make direct connections to all peers in torrent swarms so overall your upload/download speeds would be faster and you can still participate in small torrent swarms.
When you are firewalled (not port forwarded) you can only make direct connections to peers that themselves are connectable (port forwarded).
In practice when you are in large torrent swarms it may not make much difference, there's often plenty of connectable peers in large torrent swarms that you can connect with. However in smaller torrent swarms if no one is connectable then all the firewalled peers can only see each other, no data will transfer. They are all stuck waiting for a connectable peer to join the swarm & help with the data transfer.
Nice explanation, thanks!
Now it makes sense why when occasionally my VPN will stop when I’m downloading, and I’m able to get a bunch more connections than usual.