holepunch用法提议

[wulalawulala]

当使用holepunch的时候能否像使用/p2p-circuit/p2p/这样，让两个节点自动通过中继交换信息，通过中继自动打洞比如改成/direct-circuit/p2p/然后两者就能建立连接

[Stebalien]

Unless I'm misunderstanding your question, that's how it works.

1. Peer A connects to peer B over /p2p-circuit.
2. Peer B tries to directly connect back to peer A.
3. If that fails, peer B uses the DCUtR protocol, attempting to create a direct connection.

However note, this has only been implemented for QUIC (UDP) at the moment, as TCP-based hole-punching is significantly more complex.

[MarcoPolo]

We support TCP. But it generally doesn't work as well:

From @dennis-tra's talk at IPFS camp 2022