ZyXEL Communications 2 Plus User Manual

Page of 686
 Chapter 21 Remote Management
ZyWALL 2 Plus User’s Guide
395
21.15  DNS  
DNS (Domain Name System) maps a domain name to its corresponding IP address and vice 
versa. Refer to
 
 for more information.
Click ADVANCED > REMOTE MGMT DNS to change your ZyWALL’s DNS settings. 
Use this screen to set from which IP address the ZyWALL will accept DNS queries and on 
which interface it can send them your ZyWALL’s DNS settings. This feature is not available 
when the ZyWALL is set to bridge mode.
Figure 263   ADVANCED > REMOTE MGMT > DNS
The following table describes the labels in this screen. 
21.16  Introducing Vantage CNM 
Vantage CNM (Centralized Network Management) is a browser-based global management 
solution that allows an administrator from any location to easily configure, manage, monitor 
and troubleshoot ZyXEL devices located worldwide. See the Vantage CNM User's Guide for 
details.
If you allow your ZyWALL to be managed by the Vantage CNM server, then you should not 
configure the ZyWALL (using either the web configurator, SMT menus or commands) 
without notifying the Vantage CNM administrator.
Table 126   ADVANCED > REMOTE MGMT > DNS
LABEL
DESCRIPTION
Service Port
The DNS service port number is 53 and cannot be changed here.
Service Access
Select the interface(s) through which a computer may send DNS queries to the 
ZyWALL.
Secure Client IP 
Address
A secure client is a “trusted” computer that is allowed to send DNS queries to the 
ZyWALL.
Select All to allow any computer to send DNS queries to the ZyWALL.
Choose Selected to just allow the computer with the IP address that you specify to 
send DNS queries to the ZyWALL.
Apply
Click Apply to save your customized settings.
Reset
Click Reset to begin configuring this screen afresh.