message Identify {
// protocolVersion determines compatibility between peers
optional string protocolVersion = 5; // e.g. ipfs/1.0.0
// agentVersion is like a UserAgent string in browsers, or client version in bittorrent
// includes the client name and client.
optional string agentVersion = 6; // e.g. go-ipfs/0.1.0
// publicKey is this node's public key (which also gives its node.ID)
// - may not need to be sent, as secure channel implies it has been sent.
// - then again, if we change / disable secure channel, may still want it.
optional bytes publicKey = 1;
// listenAddrs are the multiaddrs the sender node listens for open connections on
repeated bytes listenAddrs = 2;
// oservedAddr is the multiaddr of the remote endpoint that the sender node perceives
// this is useful information to convey to the other side, as it helps the remote endpoint
// determine whether its connection to the local peer goes through NAT.
optional bytes observedAddr = 4;
repeated string protocols = 3;
}