With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3Ipv6CtrlRaReachableTime
Switch L3 Ipv6 Control Ra Reachable Time
1.3.6.1.4.1.171.11.70.5.3.2.1.4.1.9
Indicates the amount of time that a node can consider a neighboring node reachable after receiving a reachability confirmation.
Back to DES3612-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3Ipv6CtrlRaReachableTime 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.