title: How to specify all interfaces for multicast?
body: <p>I have two programs (MS VC++) which using multicast - receiver and sender. I test it between desktop PC (Windows 7) and netbook (Windows XP) via WiFi. Desktop PC have WiFi dongle which working in AP mode. If I specify INADDR_ANY in the interface address in the sender program, I get a problem: multicast doesn't reach netbook from desktop PC. If I specify real address of this WiFi interface instead INADDR_ANY - it working fine.</p>
  
  <p>So, I want that my sender program can working on all interfaces. How I can to do that? I have to initialize separate socket for each interface? Or may be it have more elegant possibility?</p>