As in I2P itself or bittorrent? In order for I2P to access the network it needs to be able to access the internet. If you’re behind a router, that does mean either enabling universal plug and play (UPnP) or manually opening a port for it that forwards traffic to the port on the I2P machine. UPnP is obviously the easiest (if you’re behind a router).
does it still require port forwarding for seeding ? (yeah, I know port forwarding isn’t required for torrenting)
As in I2P itself or bittorrent? In order for I2P to access the network it needs to be able to access the internet. If you’re behind a router, that does mean either enabling universal plug and play (UPnP) or manually opening a port for it that forwards traffic to the port on the I2P machine. UPnP is obviously the easiest (if you’re behind a router).
CC BY-NC-SA 4.0