This enables or disables passing multicast traffic while the modem is operating in EasyConnect mode. Because this option is specifically scoped to EasyConnect operation, it has no effect if cdmipWorkingMode is set to any of the router modes instead; an admin troubleshooting missing multicast traffic on a EasyConnect-mode unit would check this first, but it is irrelevant on a unit running Vipersat or point-to-point mode. Enabling this on a modem running EasyConnect mode would allow it to pass a multicast video stream through, whereas leaving it disabled would silently drop that same multicast traffic even though unicast traffic continues to flow normally.