Step-By-Step Configuration - NETGEAR DGND3700 User Manual

N600 wireless dual band gigabit adsl2+ modem router
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N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
Table 25. Wireless modem router with FQDN to Gateway B profile summary (continued)
VPN Consortium Scenario
NETGEAR-Gateway A
NETGEAR-Gateway B
Use a Fully Qualified Domain Name (FQDN)
Many ISPs provide connectivity to their customers using dynamic instead of static IP
addressing. This means that a user's IP address does not remain constant over time, which
presents a challenge for gateways attempting to establish VPN connectivity.
A Dynamic DNS (DDNS) service allows a user whose public IP address is dynamically
assigned to be located by a host or domain name. It provides a central public database
where information (such as email addresses, host names, and IP addresses) can be stored
and retrieved. Now, a gateway can be configured to use a third-party service instead of a
permanent and unchanging IP address to establish bidirectional VPN connectivity.
To use DDNS, you have to register with a DDNS service provider. Some DDNS service
providers include:
DynDNS: www.dyndns.org
TZO.com: netgear.tzo.com
ngDDNS: ngddns.iego.net
In this example, Gateway A is configured using a sample FQDN provided by a DDNS service
provider. In this case the hostname dgnd3300v2.dyndns.org for Gateway A was provided
using the DynDNS service. Gateway B uses the DDNS service provider when establishing a
VPN tunnel.
To establish VPN connectivity, Gateway A has to be configured to use Dynamic DNS, and
Gateway B has to be configured to use a DNS host name provided by a DDNS service
provider to find Gateway A. Again, the following step-by-step procedures assume that you
have already registered with a DDNS service provider and have the configuration information
necessary to set up the gateways.

Step-by-Step Configuration

To configure a VPN tunnel:
1.
Log in to Gateway A (your wireless modem router) as described in
Modem Router
This example assumes that you have set the local LAN address as 10.5.6.1 for Gateway
A and have set your own password.
2.
On Gateway A, configure the Dynamic DNS settings.
Scenario 1
Fully qualified domain name (FQDN)
FQDN
on page 24.
NETGEAR VPN Configuration
163
Log In to the N600

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