Nodes discover their own external address by various methods.
Nodes receive the callback address of remote nodes that connect to them.
Nodes connect to IRC to receive addresses.
Nodes makes DNS request to receive IP addresses.
Nodes can use addresses hard coded into the software.
Nodes exchange addresses with other nodes.
Nodes store addresses in a database and read that database on startup.
Nodes can be provided addresses as command line arguments
Nodes read addresses from a user provided text file on startup
https://en.bitcoin.it/wiki/Satoshi_Client_Node_Discovery谢谢,我英语水平不行。看了一下,好像还是需要先连一下irc服务器。如果irc服务器断了,bitcoin客户端就无法发现其它节点了。