AudioCodes MP-26 series, User Manual

Page: 288 / 464

User's Manual 288 Document #: LTRT-23510
MP-26x/MP-27x Multimedia Home Gateway
15.3 Configuring Dynamic DNS
The Dynamic DNS (DDNS) feature allows you to alias a dynamic IP address to a static
hostname, allowing your computer to be more easily accessible from various locations on
the Internet. Typically, when you connect to the Internet, your ITSP assigns an unused IP
address from a pool of IP addresses, and this address is used only for the duration of a
specific connection. Dynamically assigning addresses extends the usable pool of available
IP addresses, whilst maintaining a constant domain name.
When using the DDNS service, each time the IP address provided by your ITSP changes,
the DNS database changes accordingly to reflect the change. In this way, even though
your IP address changes often, your domain name remains constant and accessible.
To be able to use the Dynamic DNS (DDNS) feature, you must first open a free DDNS
account at http://www.dyndns.org/account/create.html. When applying for an account, you
need to specify a user name and password. Have them readily available when customizing
the device's DDNS support. For detailed information on DDNS, see http://www.dyndns.org.
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To open a dynamic DNS account:
1. In the 'Advanced' screen, click the Personal Domain Name (Dynamic DNS)
icon; the 'Personal Domain Name (Dynamic DNS)' screen appears.
Figure 15-9: Personal Domain Name (Dynamic DNS) Screen
2. Click the New icon to add a new connection; the 'Personal Domain Name
(Dynamic DNS)' screen appears.