With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3VrrpOperMasterIpAddr
Switch L3 Vrrp Operation Master Ip Address
1.3.6.1.4.1.171.11.70.5.3.14.1.1.7
The master router's real (primary) IP address. This is the IP address listed as the source in VRRP advertisement last received by this virtual router.
Back to DES3528-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3VrrpOperMasterIpAddr 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 routers right now.
