With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2DhcpRelayTimeThreshold
Switch L2 Dhcp Relay Time Threshold
1.3.6.1.4.1.171.11.70.5.2.8.3
This object indicates the minimum time in seconds within which the switch must relay the DHCP request. If this time is exceeded, the switch will drop the DHCP packet.
Back to DGS3200-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2DhcpRelayTimeThreshold 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.