ZyXEL Communications 202H User Manual

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Prestige 202H User’s Guide 
4-2 
SMT Menu 1 General Setup 
 
4.3 Dynamic 
DNS 
Dynamic DNS allows you to update your current dynamic IP address with one or many dynamic DNS 
services so that anyone can contact you (in NetMeeting, CU-SeeMe, etc.). You can also access your FTP 
server or Web site on your own computer using a DNS-like address (for instance myhost.dhs.org, where 
myhost is a name of your choice) that will never change instead of using an IP address that changes each 
time you reconnect. Your friends or relatives will always be able to call you even if they don't know your IP 
address.  
First of all, you need to have registered a dynamic DNS account with www.dyndns.org. This is for people 
with a dynamic IP from their ISP or DHCP server that would still like to have a DNS name. The Dynamic 
DNS service provider will give you a password or key.  
4.3.1 DYNDNS Wildcard 
Enabling the wildcard feature for your host causes *.yourhost.dyndns.org to be aliased to the same IP address 
as yourhost.dyndns.org. This feature is useful if you want to be able to use, for example, 
www.yourhost.dyndns.org and still reach your hostname. 
If you have a private WAN IP address, then you cannot use Dynamic DNS. 
 
Table 4-1 Menu 1 – General Setup 
 
FIELD DESCRIPTION 
EXAMPLE 
System Name 
Choose a descriptive name, up to 30 alphanumeric characters long (no 
spaces, but dashes “–” and underscores "_" are accepted) for 
identification purposes. It is recommended you enter your computer’s 
“Computer name” (see section 4.1.1) in this field. This name can be 
retrieved remotely via SNMP, used for CHAP authentication, and 
displayed at the prompt in the Command Mode. 
Name 
Location 
(optional) 
Enter the geographic location (up to 31 characters) of your router. branch 
Contact Person's 
Name (optional) 
Enter the name (up to 30 characters) of the person in charge of your 
router. 
JohnDoe 
When you have completed this menu, press [ENTER] at the prompt “Press ENTER to Confirm…” to save 
your configuration, or press [ESC] at any time to cancel.