With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3VrrpOperVirtualMacAddr
Switch L3 Vrrp Operation Virtual Mac Address
1.3.6.1.4.1.171.11.70.5.3.14.1.1.3
The virtual MAC address of the virtual router. Although this object can be derived from the 'swL3VrrpOperVrId' object, it is defined so that it is easily obtainable by a management application and can be included in VRRP-related SNMP traps.
Back to DES3528-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3VrrpOperVirtualMacAddr 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 access points right now.