This answer covers the meaning of bittorrent flags, including

I = Peer is an incoming connection (peer initiated connection, not you)

In what scenarios is this useful to know?

1 Answer 1


This means that your client is fully connectable and can communicate with all other peers in the swarm.

A client that can't receive incoming connections are limited to only communicate with peers that are fully connectable.

However there is a exception, if there always is a h together with the I, then the client can only receive incoming connections via UDP hole-punching.

h = Peer connection established via UDP hole-punching

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