Configuring Security; Table 18-7 Dns - ZyXEL Communications ZyWall 10W User Manual

Zywall series internet security gateway

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Table of Contents

ZyWALL Series Internet Security Gateway

The following table describes the labels in this screen.

Server Access

Secure Client IP

18.16 Configuring Security

To change your ZyWALL's security settings, click REMOTE MANAGEMENT, then the Security tab. The

screen appears as shown.

If an outside user attempts to probe an unsupported port on your ZyWALL, an ICMP response packet is

automatically returned. This allows the outside user to know the ZyWALL exists. The ZyWALL series

The DNS service port number is 53 and cannot be changed here.

Select the interface(s) through which a computer may send DNS queries to the

A secure client is a "trusted" computer that is allowed to send DNS queries to the

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.

Click Apply to save your customized settings and exit this screen.

Click Reset to begin configuring this screen afresh.

Figure 18-23 DNS

Remote Management Screens

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