ZyXEL g-2000 plusv2 Guia Do Utilizador

ZyXEL G-2000 Plus v2 User’s Guide

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Chapter 4 System Screens

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 domain name (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 
domain name. The Dynamic DNS service provider will give you a password or key.

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.

Note: ZyXEL device recommends you clone the MAC address from a computer on 

your LAN even if your ISP does not require MAC address authentication.

Administrator 

Inactivity Timer

Type how many minutes a management session (either via the web 

configurator or SMT) can be left idle before the session times out. 
The default is 5 minutes. After it times out you have to log in with your 

password again. Very long idle timeouts may have security risks. 
A value of "0" means a management session never times out, no matter how 

long it has been left idle (not recommended). 

System DNS Servers 

First DNS Server
Second DNS Server
Third DNS Server

Select From DHCP if your DHCP server dynamically assigns DNS server 

information (and the ZyXEL device's Ethernet IP address). The field to the right 

displays the (read-only) DNS server IP address that the DHCP assigns. 
Select User-Defined if you have the IP address of a DNS server. Enter the 

DNS server's IP address in the field to the right. If you chose User-Defined, but 

leave the IP address set to 0.0.0.0, User-Defined changes to None after you 

click Apply. If you set a second choice to User-Defined, and enter the same IP 

address, the second User-Defined changes to None after you click Apply. 
Select None if you do not want to configure DNS servers. If you do not 

configure a DNS server, you must know the IP address of a machine in order to 

access it.
The default setting is None.

Apply

Click Apply to save your changes back to the ZyXEL device.

Reset

Click Reset to reload the previous configuration for this screen.

Table 15   System General Setup