Configuring Security; Figure 68 Security - ZyXEL Communications VoIP Station Gateway P-2302R Series User Manual

Table 51 Remote Management: DNS
LABEL
Secured Client IP
Address
Apply
Reset

16.8 Configuring Security

To change your Prestige's security settings, click REMOTE MGMT, then the Security tab.
The screen appears as shown.
If an outside user attempts to probe an unsupported port on your Prestige, an ICMP response
packet is automatically returned. This allows the outside user to know the Prestige exists.
Your Prestige supports anti-probing, which prevents the ICMP response packet from being
sent. This keeps outsiders from discovering your Prestige when unsupported ports are probed.

Figure 68 Security

The following table describes the labels in this screen.
Chapter 16 Remote Management Screens
DESCRIPTION
A secured client is a "trusted" computer that is allowed to send DNS queries to the
Prestige.
Select All to allow any computer to send DNS queries to the Prestige.
Choose Selected to just allow the computer with the IP address that you specify to
send DNS queries to the Prestige.
Click Apply to save your customized settings and exit this screen.
Click Reset to begin configuring this screen afresh.
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