dcutr example do not work for localhost? #4452

simon-fu · 2023-09-05T08:59:04Z

simon-fu
Sep 5, 2023

Run relay-server

$ cd examples/relay-server/
$ cargo run -- --port 8808 --secret-key-seed 190
opt: Opt { use_ipv6: None, secret_key_seed: 190, port: 8808 }
Local peer id: PeerId("12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4")
Listening on "/ip4/127.0.0.1/udp/8808/quic-v1"
Listening on "/ip4/192.168.1.17/udp/8808/quic-v1"
Listening on "/ip4/127.0.0.1/tcp/8808"
Listening on "/ip4/192.168.1.17/tcp/8808"

Run client with listen mode

$ cd examples/dcutr
$ RUST_LOG=info cargo run -- --secret-key-seed 1 --mode listen --relay-address /ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4

[2023-09-05T08:48:58Z INFO  dcutr] Local peer id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X")
[2023-09-05T08:48:58Z INFO  dcutr] Listening on "/ip4/127.0.0.1/tcp/53633"
[2023-09-05T08:48:58Z INFO  dcutr] Listening on "/ip4/192.168.1.17/tcp/53633"
[2023-09-05T08:48:58Z INFO  dcutr] Listening on "/ip4/127.0.0.1/udp/49904/quic-v1"
[2023-09-05T08:48:58Z INFO  dcutr] Listening on "/ip4/192.168.1.17/udp/49904/quic-v1"
[2023-09-05T08:48:59Z INFO  dcutr] Told relay its public address.
[2023-09-05T08:48:59Z INFO  dcutr] Relay told us our public address: "/ip4/127.0.0.1/tcp/53633"
[2023-09-05T08:48:59Z INFO  dcutr] Relay accepted our reservation request.
[2023-09-05T08:48:59Z INFO  dcutr] Listening on "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X"

[2023-09-05T08:49:40Z INFO  dcutr] InboundCircuitEstablished { src_peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3"), limit: Some(Limit { duration: Some(120s), data_in_bytes: Some(131072) }) }
[2023-09-05T08:49:40Z INFO  dcutr] Established connection to PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3") via Listener { local_addr: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit", send_back_addr: "/p2p/12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3" }
[2023-09-05T08:49:40Z INFO  dcutr] InitiatedDirectConnectionUpgrade { remote_peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3"), local_relayed_addr: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit" }
[2023-09-05T08:49:40Z INFO  dcutr] Sent { peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3") }
[2023-09-05T08:49:40Z INFO  dcutr] Received { peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3"), info: Info { public_key: PublicKey { publickey: Ed25519(PublicKey(compressed): 6b79c57e6a95239282c4818e96112f3f3a401ba97a564c23852a3f1ea5fc) }, protocol_version: "/TODO/0.0.1", agent_version: "rust-libp2p/0.43.0", listen_addrs: ["/ip4/192.168.1.17/tcp/53860", "/ip4/127.0.0.1/tcp/53860", "/ip4/192.168.1.17/udp/52512/quic-v1", "/ip4/127.0.0.1/udp/52512/quic-v1"], protocols: [StreamProtocol { inner: Right("/ipfs/id/1.0.0") }, StreamProtocol { inner: Right("/libp2p/dcutr") }, StreamProtocol { inner: Right("/ipfs/id/push/1.0.0") }, StreamProtocol { inner: Right("/ipfs/ping/1.0.0") }], observed_addr: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X" } }
[2023-09-05T08:49:40Z INFO  dcutr] Outgoing connection error to Some(PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3")): Transport([("/ip4/127.0.0.1/tcp/53860/p2p/12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3", Other(Custom { kind: Other, error: Transport(Left(Left(Left(Right(Os { code: 48, kind: AddrInUse, message: "Address already in use" }))))) }))])
[2023-09-05T08:49:40Z INFO  dcutr] Outgoing connection error to Some(PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3")): Transport([("/ip4/127.0.0.1/tcp/53860/p2p/12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3", Other(Custom { kind: Other, error: Transport(Left(Left(Left(Right(Os { code: 48, kind: AddrInUse, message: "Address already in use" }))))) }))])
[2023-09-05T08:49:40Z INFO  dcutr] Established connection to PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3") via Listener { local_addr: "/ip4/127.0.0.1/tcp/53633", send_back_addr: "/ip4/127.0.0.1/tcp/53860" }
[2023-09-05T08:49:40Z INFO  dcutr] Sent { peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3") }
[2023-09-05T08:49:40Z INFO  dcutr] Received { peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3"), info: Info { public_key: PublicKey { publickey: Ed25519(PublicKey(compressed): 6b79c57e6a95239282c4818e96112f3f3a401ba97a564c23852a3f1ea5fc) }, protocol_version: "/TODO/0.0.1", agent_version: "rust-libp2p/0.43.0", listen_addrs: ["/ip4/192.168.1.17/udp/52512/quic-v1", "/ip4/127.0.0.1/tcp/53860", "/ip4/192.168.1.17/tcp/53860", "/ip4/127.0.0.1/udp/52512/quic-v1"], protocols: [StreamProtocol { inner: Right("/ipfs/ping/1.0.0") }, StreamProtocol { inner: Right("/libp2p/circuit/relay/0.2.0/stop") }, StreamProtocol { inner: Right("/ipfs/id/1.0.0") }, StreamProtocol { inner: Right("/ipfs/id/push/1.0.0") }], observed_addr: "/ip4/127.0.0.1/tcp/53633/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X" } }
[2023-09-05T08:49:40Z INFO  dcutr] Outgoing connection error to Some(PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3")): Transport([("/ip4/127.0.0.1/tcp/53860/p2p/12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3", Other(Custom { kind: Other, error: Transport(Left(Left(Left(Right(Os { code: 48, kind: AddrInUse, message: "Address already in use" }))))) }))])
[2023-09-05T08:49:40Z INFO  dcutr] DirectConnectionUpgradeFailed { remote_peer_id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3"), error: Dial }

Run client with dial mode

$ cd examples/dcutr
$ RUST_LOG=info cargo run -- --secret-key-seed 2 --mode dial --relay-address /ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4 --remote-peer-id 12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X

[2023-09-05T08:49:39Z INFO  dcutr] Local peer id: PeerId("12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3")
[2023-09-05T08:49:39Z INFO  dcutr] Listening on "/ip4/127.0.0.1/tcp/53860"
[2023-09-05T08:49:39Z INFO  dcutr] Listening on "/ip4/192.168.1.17/tcp/53860"
[2023-09-05T08:49:39Z INFO  dcutr] Listening on "/ip4/127.0.0.1/udp/52512/quic-v1"
[2023-09-05T08:49:39Z INFO  dcutr] Listening on "/ip4/192.168.1.17/udp/52512/quic-v1"
[2023-09-05T08:49:40Z INFO  dcutr] Told relay its public address.
[2023-09-05T08:49:40Z INFO  dcutr] Relay told us our public address: "/ip4/127.0.0.1/tcp/53860"
[2023-09-05T08:49:40Z INFO  dcutr] OutboundCircuitEstablished { relay_peer_id: PeerId("12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4"), limit: None }
[2023-09-05T08:49:40Z INFO  dcutr] Established connection to PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X") via Dialer { address: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X", role_override: Dialer }
[2023-09-05T08:49:40Z INFO  dcutr] Sent { peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X") }
[2023-09-05T08:49:40Z INFO  dcutr] Received { peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X"), info: Info { public_key: PublicKey { publickey: Ed25519(PublicKey(compressed): cecc157dc1ddd7295951c29888f095adb944d1b73d696e6df65d683bd4fc) }, protocol_version: "/TODO/0.0.1", agent_version: "rust-libp2p/0.43.0", listen_addrs: ["/ip4/192.168.1.17/udp/49904/quic-v1", "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X", "/ip4/127.0.0.1/tcp/53633", "/ip4/192.168.1.17/tcp/53633", "/ip4/127.0.0.1/udp/49904/quic-v1"], protocols: [StreamProtocol { inner: Right("/ipfs/ping/1.0.0") }, StreamProtocol { inner: Right("/ipfs/id/push/1.0.0") }, StreamProtocol { inner: Right("/ipfs/id/1.0.0") }], observed_addr: "/p2p/12D3KooWH3uVF6wv47WnArKHk5p6cvgCJEb74UTmxztmQDc298L3" } }
[2023-09-05T08:49:40Z INFO  dcutr] RemoteInitiatedDirectConnectionUpgrade { remote_peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X"), remote_relayed_addr: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X" }
[2023-09-05T08:49:40Z INFO  dcutr] RemoteInitiatedDirectConnectionUpgrade { remote_peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X"), remote_relayed_addr: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X" }
[2023-09-05T08:49:40Z INFO  dcutr] Outgoing connection error to Some(PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X")): Transport([("/ip4/127.0.0.1/tcp/53633/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X", Other(Custom { kind: Other, error: Transport(Left(Left(Left(Right(Os { code: 48, kind: AddrInUse, message: "Address already in use" }))))) }))])
[2023-09-05T08:49:40Z INFO  dcutr] RemoteInitiatedDirectConnectionUpgrade { remote_peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X"), remote_relayed_addr: "/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X" }
[2023-09-05T08:49:40Z INFO  dcutr] Established connection to PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X") via Dialer { address: "/ip4/127.0.0.1/tcp/53633/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X", role_override: Dialer }
[2023-09-05T08:49:40Z INFO  dcutr] DirectConnectionUpgradeSucceeded { remote_peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X") }
[2023-09-05T08:49:40Z INFO  dcutr] Sent { peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X") }
[2023-09-05T08:49:40Z INFO  dcutr] Received { peer_id: PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X"), info: Info { public_key: PublicKey { publickey: Ed25519(PublicKey(compressed): cecc157dc1ddd7295951c29888f095adb944d1b73d696e6df65d683bd4fc) }, protocol_version: "/TODO/0.0.1", agent_version: "rust-libp2p/0.43.0", listen_addrs: ["/ip4/127.0.0.1/tcp/8808/p2p/12D3KooWALAGHBpRaGvZygPkEcCmLZbEE843BQsQoG5EriP7Qqu4/p2p-circuit/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X", "/ip4/127.0.0.1/tcp/53633", "/ip4/127.0.0.1/udp/49904/quic-v1", "/ip4/192.168.1.17/tcp/53633", "/ip4/192.168.1.17/udp/49904/quic-v1"], protocols: [StreamProtocol { inner: Right("/libp2p/circuit/relay/0.2.0/stop") }, StreamProtocol { inner: Right("/ipfs/ping/1.0.0") }, StreamProtocol { inner: Right("/ipfs/id/1.0.0") }, StreamProtocol { inner: Right("/ipfs/id/push/1.0.0") }], observed_addr: "/ip4/127.0.0.1/tcp/53860" } }
[2023-09-05T08:49:40Z INFO  dcutr] Outgoing connection error to Some(PeerId("12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X")): Transport([("/ip4/127.0.0.1/tcp/53633/p2p/12D3KooWPjceQrSwdWXPyLLeABRXmuqt69Rg3sBYbU1Nft9HyQ6X", Other(Custom { kind: Other, error: Transport(Left(Left(Left(Right(Os { code: 48, kind: AddrInUse, message: "Address already in use" }))))) }))])

The client with listen mode shows that DirectConnectionUpgradeFailed.
The client with dial mode shows DirectConnectionUpgradeSucceeded and with unexpect "Address already in use".

thomaseizinger · 2023-09-05T11:48:15Z

thomaseizinger
Sep 5, 2023
Collaborator

You need to listen on different ports for those clients.

5 replies

simon-fu Sep 5, 2023
Author

Actually, if you look closely at the above descriptions, the two clients listen on different ports. One client listens on tcp/53633 and udp/49904, another listens on tcp/53860 and udp/52512 .

thomaseizinger Sep 5, 2023
Collaborator

Right, that is interesting.

I can see a DirectConnectionUpgradeSucceeded event in there among the failures. So At least for one party it seems to work?

The thing with hole-punching for TCP is that it is very time-sensitive and that doesn't make a whole lot of sense on localhost in the first place. I would not invest time into this unless you see actual hole-punch failures in the wild.

simon-fu Sep 6, 2023
Author

From what you said, if relay client connects to /ip4/127.0.0.1/tcp/8808/p2p/xxx，libp2p will use TCP protocol for hole-punch.
If connect to /ip4/127.0.0.1/udp/8808/quic-v1/p2p/xxx, libp2p will use UDP protocol for hole-punch.
Is it right?

thomaseizinger Sep 6, 2023
Collaborator

Yep, that is correct!

simon-fu Sep 6, 2023
Author

Okey, it seems that UDP is much easier than TCP for hole-punch. However we got another problem when change to UDP, see #4453

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dcutr example do not work for localhost? #4452

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dcutr example do not work for localhost? #4452

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thomaseizinger Sep 5, 2023 Collaborator

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simon-fu
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