Ddns; Chapter 16 Ddns; Ddns Overview; What You Can Do In This Chapter - ZyXEL Communications ZYWALL USG 20 Manual

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H A P T E R

16.1 DDNS Overview

Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP
address.

16.1.1 What You Can Do in this Chapter

• Use the DDNS screen (see
configured DDNS domain names and their details.
• Use the DDNS Add/Edit screen (see
domain name to the ZyWALL or to edit the configuration of an existing domain
name.

16.1.2 What You Need to Know

DNS maps a domain name to a corresponding IP address and vice versa. Similarly,
dynamic DNS maps a domain name to a dynamic IP address. As a result, anyone
can use the domain name to contact you (in NetMeeting, CU-SeeMe, etc.) or to
access your FTP server or Web site, regardless of the current IP address.
Note: You must have a public WAN IP address to use Dynamic DNS.
You must set up a dynamic DNS account with a supported DNS service provider
before you can use Dynamic DNS services with the ZyWALL. When registration is
complete, the DNS service provider gives you a password or key. At the time of
writing, the ZyWALL supports the following DNS service providers. See the listed
websites for details about the DNS services offered by each.
Table 91 DDNS Service Providers
PROVIDER
DynDNS
Dynu
No-IP
Peanut Hull
3322
ZyWALL USG 20/20W User's Guide
Section 16.2 on page
SERVICE TYPES SUPPORTED
Dynamic DNS, Static DNS, and Custom DNS www.dyndns.com
Basic, Premium
No-IP
Peanut Hull
3322 Dynamic DNS, 3322 Static DNS
332) to view a list of the
Section 16.2.1 on page
WEBSITE
www.dynu.com
www.no-ip.com
www.oray.cn
www.3322.org
16

DDNS

334) to add a
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