Aug 13

This FAQ is for the DI-514, DI-524, DI-604, DI-614+, DI-624, DI-624S, DI-754, DI-764, DI-774, and DI-784 routers.

Nortel Contivity will work with the your D-Link router, however its functionality depends on the authentication type (AH will not work), NAT compatibilty mode, and disabling keep alives on the server. Contact your Network Administrator to find out how your VPN is configured.

Step 1: Verify that you are using the latest version of firmware on your router.

Step 2: Login to the Web Management for your router by entering its IP address ( in your web browser. The default username is admin, and the password is blank.

Step 3: Click the Advanced Tab to access the Virtual Server Settings. There is a list of pre-defined Virtual Server Rules towards the bottom of the page. Find the IPSec Rule. Click the pen and paper icon to edit its settings. Enable the rule, enter the IP address of the computer attempting to connect to the VPN in the Private IP field, then Apply the changes.


Step 4: Create a new Virtual Server entry. Name the Virtual Server, “NortelVPN“. Enter the IP address of the computer attempting to connect to the VPN in the Private IP field. For the Protocol Type, select Both. Enter 9550 for both the Public and Private Ports. Set the Schedule to always, then Apply the settings.


Step 5: Access the Tools Page, then click the Misc button. Disable IPSec Pass-through, then click Apply.


If the VPN Server is properly configured to work with clients behind NAT routers you should be able to connect to the VPN.

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  • At 2011.10.21 17:59, Contivity Blues said:

    How to configure D-Link DIR-625 to use Nortel Contivity VPN client?

    I would appreciate if you could publish similar instructions for the DIR-625. The configuration panel is different and I am not finding a way to create an IPSec rule in the virtual server menu (the pulldown menu doesn’t give an IPSec option). It seems to the only option is to have IPSec activated or not under the Firewall tab. I can connect to my work VPN if I plug a cable in my Comcast router. So it’s clearly a router issue. Thanks!

    • At 2013.10.06 11:22, Dirk Linden said:

      Great info, very useful. just a little add on, make the ip adress/ mac adress static

      (Required, will not be published)