Some potential problems are listed here.
Unable to see any Axia driver devices?
Make sure the current user is a member of the audio group. Do so with the following command, where user_name is the Linux user in question. This would be done at the Linux prompt and not through the TCP connection to port 93
sudo usermod -a -G audio user_nameDriver is sending out audio streams, but there is no datagram in the packet (no audio data in the stream)
This is likely a configuration error. Ensure the SRC configuration includes the packet time (RTPP:) value of 48 or 240.
This can be confirmed by the command SET from a telnet connection to port 93
No Livewire data on the network from the Linux driver?
Make sure that the Livewire interface is defined in the configuration. This is done through the LWIFS properties and should call out the network interface using its name. You may check the configuration by just commanding SET from a telnet connection to port 93.