Step-By-Step Configuration - NETGEAR DGND3800B User Manual

N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Table 13. Wireless modem router with FQDN to Gateway B profile summary (Continued)
VPN Consortium Scenario
Gateway A
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 dgnd3800.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:
Log in to Gateway A (your modem router) as described in
1.
on page 18.
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.
On Gateway A, configure the Dynamic DNS settings.
2.
Scenario 1
Fully qualified domain name (FQDN)
FQDN
VPN Configuration
152
Log In to the N600 Modem