Hello,
I am using qbittorrent for torrenting and my ISP has refused to open up firewall because of fucking “security” reasons. however I can still seed the torrent how is that possible? I mean all the incoming connections should be blocked right? isn’t it how firewall works?
Stop using your ISPs router and they’re not going to have much control over it.
no they have firewall enabled on their side so even if I use my own router it won’t do much.
Who says the ISP isn’t blocking ports via a firewall?
I thought it was common practice for ISPs to block certain ports for residential connections?
It sounds like everything is working, so… whats the issue?
BT protocol works thru both parties. You have seeders and leachers (called peers). Both need to make a connection but how that connection is initiated and opened is important. If a peer initiates the connection and has their ports open, you’re good, regardless of your own setup.
Unfortunately not every seeder does this (for various reasons). And that’s when having your ports open makes a world of difference. Because if the peer also has their ports blocked, you will never get a successful handshake between the two of you.
On torrents that have hundreds of peers, you’re likely fine; they’ll be plenty that can initiate the transfer for you. But when you get obscure torrents with only a handful of peers, you’re likely fucked. I’m over simplifying for the sake of discussion.
Just wondering if this is still happening over a VPN?
however I can still seed the torrent how is that possible?
Yes you can still seed as well as download. But you are limited and can only upload and download torrent data in swarms that contain peers that are themselves fully connectable (port forwarded).
So say you join a torrent swarm that only contains peers just like you (firewalled, no ports forwarded) then no one will transfer any torrent data with each other. Everyone is stuck waiting for a fully connectable (port forwarded) peer to join that swarm.
