With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
lineCardAdminRfc2684Encap
line Card Admin Rfc2684 Encap
1.3.6.1.4.1.3646.1300.2.1.11.1.13
Setting this object to LLC (1) to encapsulate the packet to LLC style. Setting it to vcMux (2) to encapsulate the packet to VC-MUX style.
Back to ASKEY-SYSTEM-MIB MIB page.
IPHost Network monitor allows you to monitor lineCardAdminRfc2684Encap 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.