Just learned multicast when the tangled question of how the user would like to know which of the multicast group to join, how to know which multicast address to join?
Now that I think really, it is to use words to describe me as "not very professional" a school computer.
In fact, this question is easy to answer, but thought it clear, in fact, he is equivalent to a problem, I am looking at the page, send qq when the B station to see when my phone is how to know each other's IP address in order to get the data it?
Ha ha ha ha ha ha, that is, code farmers have already written to you, you use the software actually is where to get the data have already been written into, for example, Tencent's server is xxxx, when you send qq mobile phone according to the write good program
Automatically contact the xxxx.
Multicast is the same ah, watching television, watching it live, you turn on the TV, open mobile phone software that moment, I had gone to fetch an IP address data to the multicast group, which group to join the program execution on the line.