With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swPimInfoDesignatedRouter
Switch Pim Info Designated Router
1.3.6.1.4.1.171.12.52.2.3.1.4
The Designated Router on this PIM interface. For point-to- point interfaces, this object has the value 0.0.0.0.
Back to PIM-SM-MIB MIB page.
IPHost Network monitor allows you to monitor swPimInfoDesignatedRouter on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link WiFi routers right now.