[Mono-list] Broadcast / Multicast packets dont get received

TommyB thomas.baumann at devs-on.net
Thu Mar 15 06:47:13 UTC 2012


I want to create an application that has an auto discovery feature to find
other application instances in the network. For this I use Multicast like
described in many examples around the internet.
(before that I have used broadcast packets, same problem)

I verified my application works fine on windows machines but on the linux
machine I can't get it working.
I'm sure this is not a network specific error. I have disabled iptables and
I verified that the packets arrive successfully (at least Wireshark lists
them if I start a capture). The linux machine can send those packets
(socket.sendto), but it never receives them (socket.receivefrom).

I've posted the source code to reproduce the error here:
It's a VB.Net console application.

For me it seems to be a bug in mono?!

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