Profile for IPSec Interoperability of D-Link DI-804HV, DI-808HV, or DI-824VUP+

You can configure DI-804HV, DI-808HV, and DI-824VUP+ by web management interface. Type 192.168.0.1 (The LAN IP is 192.168.0.1 by default) in the browser, and then input user name: admin (there is no password by default) to pass authentication of web management interface. (...)Then finish the configurations as showed below on Gateway A and Gateway B.Before you start to establish VPN connection between Gateway A and Gateway B, please make sure the Internet connection between Gateway A and Gateway B is workable. You can use “Ping Test” tool on Gateway A (or Gateway B), and input the IP address of Gateway B (or Gateway A) to see if there is any response from its peer device. Connect a PC (called PC_A) to the LAN port of Gateway A, and connect another PC (called PC_B) to the LAN port of Gateway B. Start to “Ping” PC_B on PC_A, then Gateway A will start to establish IPSec connection with Gateway B. If you can get “Ping” responses from PC_B on PC_A, then it means the tunnel has been established successfully. You can also check the “VPN Status” page with web management interface to verify the status of VPN connections. Source: http://www.vpnc.org
Figure 1: VPN status of Gateway A after IPSec connection has been established.
Figure 2: VPN status of Gateway B after IPSec connection has been established.