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address propagation and discovery

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Andreas M. Antonopoulos 2014-07-20 12:41:13 -05:00
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@ -75,6 +75,12 @@ How does a new node find peers? While there are no special nodes in bitcoin, the
Once one or more connections is established, the new node will send an +addr+ message containing its own IP address, to its neighbors. The neighbors will in turn forward the +addr+ message to their neighbors, ensuring that the newly connected node becomes well known and better connected. Additionally, the newly connected node can send +getaddr+ to the neighbors asking them to return a list of IP addresses of other peers. That way, a node can find peers to connect to and advertise its existence on the network for other nodes to find it. On a node running the Bitcoin Core client, you can list the peer connections with the command +getpeerinfo+: Once one or more connections is established, the new node will send an +addr+ message containing its own IP address, to its neighbors. The neighbors will in turn forward the +addr+ message to their neighbors, ensuring that the newly connected node becomes well known and better connected. Additionally, the newly connected node can send +getaddr+ to the neighbors asking them to return a list of IP addresses of other peers. That way, a node can find peers to connect to and advertise its existence on the network for other nodes to find it. On a node running the Bitcoin Core client, you can list the peer connections with the command +getpeerinfo+:
[[address_propagation]]
.Address Propagation and Discovery
image::images/AddressPropagation.png["AddressPropagation"]
---- ----
$ bitcoin-cli getpeerinfo $ bitcoin-cli getpeerinfo
[ [

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