With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swQinQRuleSpvidOperation
Switch Qin Q Rule Spvid Operation
1.3.6.1.4.1.171.12.57.4.2.1.17
The 'add' action indicates to add a tag for the assigned SP-VLAN before the C-VLAN tag. If there is S-TAG in the packet, this rule will not take effect. The 'replace' action indicates to replace the C-VLAN in the tag by the SP-VLAN. If there is no C-TAG in the packet, this rule will not take effect.
Back to Q-IN-Q-MIB MIB page.
IPHost Network monitor allows you to monitor swQinQRuleSpvidOperation 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.