Hello,<br><br>I am trying to use Boost for some IPv6 and multicast network communication. I need to construct an IPv6 multicast socket that uses a specific network interface index.<br><br>I was able to find the correct multicast option to set the network interface index in boost/asio/ip/detail/socket_option.hpp:<br>
explicit multicast_request(const boost::asio::ip::address_v6&amp; multicast_address, unsigned long network_interface = 0)<br><br>The problem is, I don&#39;t know how to find the correct value for the &quot;network_interface&quot; parameter. Is there a way to get the network_interface value using a local IPv6 address that I can provide? I looked in the documentation and examples, but couldn&#39;t find anything.<br>
<br>-- Dylan<br>