for those who want to work with multicast addressing (for example, for Plug&Play mDNS), I have discovered that there is a little glitch between Galileo Gen 1 and Galileo Gen 2.
Multicast is enabled by default on Gen 1, but not on Gen 2. In my case, it was making my RTP-MIDI mDNS engine to fail sending the Bonjour packets on the Gen 2.
Solution is very simple : just open a console, and type the following command
ip route add 220.127.116.11/4 dev eth0
And that's done
Last but not least, the configuration is saved by Linux, so you don't have to do it every time you restart your beloved Galileo
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