On Thu, 4 Aug 2016 at 18:04 Jason Litzinger <jlitzingerdev@gmail.com> wrote:
I did try specifying the loopback index, however, I received a
"Network Unreachable" error.  I didn't have time to dig into whether
it was possible to do what I wanted with the loopback interface last

By default, the "multicast" flag is not enabled for the loopback interface on Linux. Does running "ip link set dev lo multicast on" help here? (Although requiring this would then be rather problematic for testing, as doing this in containerized environments and restricted environments like Travis is presumably impossible)