ZyXEL p-2802h-i1 Manual Do Utilizador

 Chapter 19 Remote Management Configuration

P-2802H(W)(L)-I Series User’s Guide

Figure 160   Remote Management: DNS

The following table describes the labels in this 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 anti-probing, which prevents the ICMP response 
packet from being sent. This keeps outsiders from discovering your ZyXEL Device when 
unsupported ports are probed. 

"

If you want your device to respond to pings and requests for unauthorized 
services, you may also need to configure the firewall anti probing settings to 
match. 

Table 110   Remote Management: DNS

Port

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

Access Status

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

ZyXEL Device.

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.

Apply

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

Cancel

Click Cancel to begin configuring this screen afresh.