With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3RouteRedistriTable
Switch L3 Route Redistri Table
1.3.6.1.4.1.171.11.70.5.3.5
Route redistribution allows routers on the network that are running different routing protocols to exchange routing information. This is accomplished by comparing the routes stored in the varios routers' routing tables and assigning appropriate metrics. This information is then exchanged among the various routers according to the individual routers current routing protocol.
Back to DES3528-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3RouteRedistriTable 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.