使用boost :: asio获取广播源IP地址

Question

I'm currently struggling with a basic socket problem using boost::asio. A server is sending broadcasts in my LAN to discover client machines. The broadcast is successfully read on the client, but now I'm stuck with the question of how to get the IP address of the server, to be able to establish a regular connection to it.

I tried to query the remote endpoint after receiving the broadcast, but of course I get 0.0.0.0 as a result. Same for querying the local endpoint before sending the broadcast on the server (I'd send the server IP in the broadcast, then)

So, what is the default procedure to get the broadcast sender address?

Thanks :)

Answer 1

尝试使用UDP套接字的recieve_from或async_recieve_from方法...它们采用在收到数据时填写的端点参数。