With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3RelayDnsCtrlState
Switch L3 Relay Dns Control State
1.3.6.1.4.1.171.11.70.5.3.3.2.6.1.3
This object indicates the status of this entry. other(1) - this entry is currently in use but the conditions under which it will remain so are different from each of the following values. invalid(2) - writing this value to the object, and then the corresponding entry will be removed from the table. valid(3) - this entry is reside in the table.
Back to DES3627-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3RelayDnsCtrlState 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 switches right now.
