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Tag Archives: multicast

Outgoing multicast loop

17-Apr-09

Another network related problem with the Linux kernel I can't explain. The following example code receives a multicast stream RX_MC_IP:RX_MC_PORT and resends it to TX_MC_IP:TX_MC_PORT. Then it tries to receive from the stream we are just producing, and it succeeds. I wouldn't expect the kernel to loop the stream we are producing back to the [...]

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Intrepid Ibex and multicast

11-Feb-09

Good tip from a working colleague. Ubuntu 8.10 (Intrepid Ibex) is configured not to receive certain ranges of multicast traffic. The 225.0.0.0 range works, but for example the 233.0.0.0 doesn’t. This probably has to do with it being reserved for internet wide multicast. The solution is to edit /etc/sysctl.d/10-network-security.conf, and change the two lines ending [...]

Filed in Linux, networking, ubuntu | Also tagged , | Comments (0) »