转:组播setsockopt:no such device问题的解决方法
2014-09-08 11:37
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What does "IP_ADD_MEMBERSHIP: No such device" mean? It means that the tool is trying to use multicast but the network interface doesn't support it There are two likely causes: ·Your machine doesn't have multicast support enabled. For example, on Linux and FreeBSD it is possible to compile a kernel which doesn't support multicast. ·You don't have a route for multicast traffic. Some systems don't add this by default, and you need to run: route add -net 224.0.0.0 netmask 224.0.0.0 eth0(or similar). If you wish to use RAT in unicast mode only, it is possible to add the multicast route on the loopback interface. |
出现上诉问题的两种可能:
1.你的机器没有可用的组播功能(在ubuntu下通过ifconfig检查虚拟机是否支持本功能)。
2.没有为主机添加路由,有些系统不添加默认情况。你需要在终端下输入:route add -net 224.0.0.0 netmask 224.0.0.0 eth0(or similar).
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