With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
sourceRoutingStatsAllRoutesBroadcastOctets
source Routing Stats All Routes Broadcast Octets
1.3.6.1.2.1.16.10.6.1.11
The total number of octets in good frames received that were All Routes Broadcast.
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IPHost Network monitor allows you to monitor sourceRoutingStatsAllRoutesBroadcastOctets 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.