User's Manual

106 | Chapter 7. Virtual Private Networking
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 User Manual
router (unless another PC already has the N600 Wireless Dual Band Gigabit ADSL2+
Modem Router DGND3700 management interface open).
• Gateway-to-gateway configuration. Test the VPN tunnel by pinging the remote network
from a PC attached to Gateway A (the wireless modem router).
a. Open a command prompt (for example, Start > Run > cmd).
b. Type ping 192.168.3.1.
Note: The pings might fail the first time. If they do, then try the pings a
second time.
Start Using a VPN Tunnel to Activate It
To use a VPN tunnel, use a Web browser to go to a URL whose IP address or range is
covered by the policy for that VPN tunnel.
Verifying the Status of a VPN Tunnel
To use the VPN Status screen to determine the status of a VPN tunnel:
1. Log in to the wireless modem router.
2. On the main menu, select VPN Status to display the VPN Status/Log screen.
This log shows the details of recent VPN activity, including the building of the VPN tunnel.
If there is a problem with the VPN tunnel, refer to the log for information about what might
be the cause of the problem.
• Click Refresh to see the most recent entries.