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6

Peer Exchange

Channels

Pex has one channel. The channel identifier is listed below.

Name	Number
PexChannel	0

PexRequest is an empty message requesting a list of peers.

EmptyRequest

PexResponse is an list of net addresses provided to a peer to dial.

Name	Type	Description	Field Number
addresses	repeated PexAddress	List of peer addresses available to dial	1

PexAddress provides needed information for a node to dial a peer.

Name	Type	Description	Field Number
id	string	NodeID of a peer	1
ip	string	The IP of a node	2
port	port	Port of a peer	3

Message is a oneof protobuf type. The one of consists of two messages.

Name	Type	Description	Field Number
pex_request	PexRequest	Empty request asking for a list of addresses to dial	1
pex_response	[PexResponse]	List of addresses to dial	2