Chapter 17 Remote Management
17.6 The DNS Screen
Use DNS (Domain Name System) to map a domain name to its corresponding IP address and vice versa. Refer to Chapter 6 on page 89 for background information.
Use this screen to set from which IP address the ZyXEL Device will accept DNS queries and on which interface it can send them your ZyXEL Device’s DNS settings. This feature is not available when the ZyXEL Device is set to bridge mode. Click Advanced > Remote MGMT > DNS to change your ZyXEL Device’s DNS settings.
Figure 150 Advanced > Remote Management > DNS
The following table describes the labels in this screen.
Table 95 Advanced > Remote Management > DNS
LABEL | DESCRIPTION |
Port | The DNS service port number is 53 and cannot be changed here. |
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Access Status | Select the interface(s) through which a computer may send DNS queries to the |
| ZyXEL Device. |
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Secured Client IP | A secured client is a “trusted” computer that is allowed to send DNS queries to the |
| ZyXEL Device. |
| Select All to allow any computer to send DNS queries to the ZyXEL Device. |
| Choose Selected to just allow the computer with the IP address that you specify to |
| send DNS queries to the ZyXEL Device. |
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Apply | Click this to save your changes. |
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Cancel | Click this to restore your previously saved settings. |
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17.7 The ICMP Screen
To change your ZyXEL Device’s security settings, click Advanced > Remote MGMT > ICMP. The screen appears as shown.
If an outside user attempts to probe an unsupported port on your ZyXEL Device, an ICMP response packet is automatically returned. This allows the outside user to know the ZyXEL Device exists. Your ZyXEL Device supports
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