mkdir -p ./build
cd ./build
cmake ../
makeStart server with default IPV6_MULITCAST_LOOP value.
./build/main server Only send a multicast message (IPV6_MULITCAST_LOOP default value)
./build/main clientUse same socket for server and sending (IPV6_MULITCAST_LOOP default value).
./build/main bothServer with IPV6_MULITCAST_LOOP enabled.
./build/main server enabledClient sending multicast with IPV6_MULITCAST_LOOP disabled.
./build/main server enabledBoth IPV6_MULITCAST_LOOP disabled.
./build/main both disabledBoth IPV6_MULITCAST_LOOP enabled.
./build/main both enabled