With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2IGMPRobustness
Switch L2 IGMP Robustness
1.3.6.1.4.1.171.11.70.5.2.11.3.1.4
The Robustness Variable allows tuning for the expected packet loss on a subnet. If a subnet is expected to be lossy, the Robustness Variable may be increased. IGMP is robust to (Robustness Variable-1) packet losses.
Back to DES3026-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2IGMPRobustness 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 VPN routers right now.