TP LINK WDR3600 wifi support

Hi all,
i want to collect parameter from WDR3600 like

Device.Ethernet.Interface.*.Stats.DiscardPacketsReceived|

Device.Ethernet.Interface.*.Stats.DiscardPacketsSent|

Device.Ethernet.Interface.*.Stats.BytesReceived|

Device.Ethernet.Interface.*.Stats.BytesSent|

Device.Ethernet.Interface.*.Stats.PacketsReceived|

Device.Ethernet.Interface.*.Stats.PacketsSent|

Device.Ethernet.Interface.*.Stats.ErrorsReceived|

Device.Ethernet.Interface.*.Stats.ErrorsSent|

Device.Ethernet.Interface.*.Stats.UnicastPacketsSent|

Device.Ethernet.Interface.*.Stats.UnicastPacketsReceived|

Device.Ethernet.Interface.*.Stats.MulticastPacketsSent|

How to find its path, please provide.
i hope its path exposed because this device is openwrt based.

Thanks in advance.