[Live-devel] GroupsockHelper.cpp ReceivingInterfaceAddr

[Arnold Liu]

Greetings All,

I have a Linux system with multiple ethernet
interfaces, and was attempting to configure the
"liveMedia" test program "testWAVAudioStreamer" to use
something other than the default eth0 (which works
fine by the way).

I attempted to hack the two variables in
"GroupsockHelper.cpp" - SendingInterfaceAddr, and
ReceivingInterfaceAddr to force the use of a
particular interface.  Here is what I've seen :
eth0 : 172.16.2.174
eth1 : 192.168.1.1

If Sending = INADDR_ANY, receiving = INADDR_ANY, this
works, and packets go out to eth0

If Sending = eth0, Receiving = INADDR_ANY, this works,
and packets go out to eth0

If Sending = eth0, Receiving = eth0, this does _not_
work, "OurSourceAddressForMulticast()" times out
waiting for the dummy packet.

If Sending = eth1, Receiving = INADDR_ANY, this also
times out waiting for the dummy packet.

If Sending = eth1, Receiving = eth1, this also times
out waiting for the dummy packet.

Was curious if anyone else has had any experience
using this library on different interfaces?

Regards,
Arnold