this post was submitted on 09 Aug 2023
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Privacy
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I appreciate the breakdown, but I meant i was ignorant on why port forwarding was important for a VPN :) Was still a great write up that should be used as reference for others! :D
I didnt realize you still had to port forward to get around ISP traffick shaping/blockage with a VPN. Thought the encrypted tunnel between you and the VPN disguised that, and any port stuff was done at their end, after exiting the tunnel.
VPNS with port forwarding matter if you want to stay anonymous while using P2P services.
@Helldiver_M @Dubious_Fart @leraje actually the port forwarding thing is about accepting inbound connections. Without port forwarding, NAT routers (including VPNs) randomly allocate ports for outbound connections but still won't accept inbound connections on those same ports.
There's a trick where you discover the randomly allocated port numbers and then both connect to each other at the same time so both routers think it's outbound. It works unreliably and BitTorrent doesn't use it.