With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
sourceRoutingStatsLocalLLCFrames
source Routing Stats Local LLC Frames
1.3.6.1.2.1.16.10.6.1.13
The total number of frames received who had no RIF field (or had a RIF field that only included the local ring's number) and were not All Route Broadcast Frames.
Back to TOKEN-RING-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor sourceRoutingStatsLocalLLCFrames 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.