HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual page 714

Using the Web Browser Interface for Basic Configuration Tasks
DNS Services
14-92
Your customers may need to access devices on your network, such as Web
servers, whose addresses are linked to the dynamic public address. However,
if this address changes, the hostname stored in DNS servers throughout the
Internet will no longer match the device's actual IP address.
To allow your customers to always use the same hostname to access a device
with a dynamic address, you should receive a static hostname from a dynamic
DNS service provider. The ProCurve Secure Router supports dynamic DNS
with Dynamic Networking Services, Inc., also called DynDNS.
1. Before activating dynamic DNS on an interface, you should go to
www.dyndns.org and open an account.
a. When you open an account, you will select a username and password.
b. You will also select a service type. DynDNS currently provides
Dynamic and Static DNS services free of charge. If you select Dynamic
or Static DNS, you must place the router in one of the 68 domains
provided by DynDNS.
Dynamic and Static DNS grant much the same services; however,
Static DNS is designed for an interface with an address that does not
change or rarely changes.
If you purchase Custom DNS services, you can use your own domain
name (either pre-existing or purchased from DynDNS). For more
information on the various services, see Chapter 12: Domain Name
System (DNS) Services or the DynDNS Web site at www.dyndns.org.
c. When you open the account, you will also specify the domain name
the router interface will use.