The Icmp Screen - ZyXEL Communications eircom D1000 User Manual

Chapter 24 Remote Management
is set to bridge mode. Click Maintenance > RemoteMGMT > DNS to change your Device's DNS
settings.
Figure 139 Maintenance > RemoteMGMT > DNS
The following table describes the labels in this screen.
Table 84 Maintenance > RemoteMGMT > DNS
LABEL
Server Port
Access Status
Secured Client IP
Address
Apply
Cancel

24.7 The ICMP Screen

To change your Device's security settings, click Maintenance > RemoteMGMT > ICMP. The
screen appears as shown.
If an outside user attempts to probe an unsupported port on your Device, an ICMP response packet
is automatically returned. This allows the outside user to know the Device exists. Your Device
supports anti-probing, which prevents the ICMP response packet from being sent. This keeps
outsiders from discovering your Device when unsupported ports are probed.
Note: If you want your device to respond to pings and requests for unauthorized services,
you will also need to configure the firewall accordingly by disabling SPI.
202
DESCRIPTION
This displays the service port number for accessing the Device. If the number is grayed
out, it is not editable.
Select the interface(s) through which a computer may send DNS queries to the Device.
A secured client is a "trusted" computer that is allowed to send DNS queries to the
Device.
Select All to allow any computer to send DNS queries to the Device.
Choose Range to just allow the computer(s) with an IP address in the range that you
specify to send DNS queries to the Device.
Click this to save your changes.
Click this to restore your previously saved settings.
eircom D1000 modem User's Guide