private bool IsMulticast()
{
if (MulticastMode == MulticastMode.Auto)
{
// 224.0.0.0 to 239.255.255.255 are multicast (https://en.wikipedia.org/wiki/Multicast_address)
byte firstByte = RemoteAddress.GetAddressBytes()[0];
return(firstByte >= 224 && firstByte < 240);
}
else
{
return(MulticastMode == MulticastMode.Enabled);
}
}