提高ASIO插座多播到一个特定的以太网接口 [英] Boost asio socket multicast to a specific ethernet interface

问题描述

我想我已经找到了下面的示例中的答案，但并不完全。

I thought I had found the answer in the following example, but not quite.

boost::asio::ip::udp::socket socket(io_service); 
...
boost::asio::ip::address_v4 local_interface =
    boost::asio::ip::address_v4::from_string("1.2.3.4");
boost::asio::ip::multicast::outbound_interface option(local_interface);
socket.set_option(option);

如何映射的eth0 来适当outbound_interface选项？

How do I map eth0 to the appropriate outbound_interface option?

推荐答案

我觉得为什么你的榜样，eile的例子不工作的原因是因为你没有设置SO_BINDTODEVICE套接字选项。

I think the reason why your example and eile's example don't work is because you didn't set the SO_BINDTODEVICE socket option.

请参阅该知道为什么它不工作： http://codingrelic.geekhold.com/2009/10/$c$c-snippet-sobindtodevice.html

See this to know why it doesn't work: http://codingrelic.geekhold.com/2009/10/code-snippet-sobindtodevice.html

看到这个就知道如何使用的boost :: ASIO做到这一点：的 http://permalink.gmane.org/gmane.comp.lib.boost.asio.user/2724

See this to know how to do it with boost::asio: http://permalink.gmane.org/gmane.comp.lib.boost.asio.user/2724

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