Zyxel ZyWALL 1100 [290/829] Ddns overview

Zyxel USG 40W [290/829] Ddns overview
ZyWALL/USG Series User’s Guide
290
CHAPTER 11
DDNS
11.1 DDNS Overview
Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP address.
11.1.1 What You Can Do in this Chapter
•Use the DDNS screen (see Section 11.2 on page 291) to view a list of the configured DDNS
domain names and their details.
•Use the DDNS Add/Edit screen (see Section 11.2.1 on page 292) to add a domain name to the
ZyWALL/USG or to edit the configuration of an existing domain name.
11.1.2 What You Need to Know
DNS maps a domain name to a corresponding IP address and vice versa. Similarly, Dynamic DNS
(DDNS) 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 (dynamic) 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/USG. When registration is complete, the DNS service
provider gives you a password or key. At the time of writing, the ZyWALL/USG supports the
following DNS service providers. See the listed websites for details about the DNS services offered
by each.
Note: Record your DDNS accounts user name, password, and domain name to use to
configure the ZyWALL/USG.
After you configure the ZyWALL/USG, it automatically sends updated IP addresses to the DDNS
service provider, which helps redirect traffic accordingly.
Table 125 DDNS Service Providers
PROVIDER SERVICE TYPES SUPPORTED WEBSITE
DynDNS Dynamic DNS, Static DNS, and Custom DNS www.dyndns.com
Dynu Basic, Premium www.dynu.com
No-IP No-IP www.no-ip.com
Peanut Hull Peanut Hull www.oray.cn
3322 3322 Dynamic DNS, 3322 Static DNS www.3322.org
Selfhost Selfhost selfhost.de

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