Figure 59 Firewall: Service; Table 42 Firewall: Service - ZyXEL Communications VoIP Station Gateway P-2302R Series User Manual

P-2302R Series User's Guide

Figure 59 Firewall: Service

The following table describes the labels in this screen.

Table 42 Firewall: Service

LABEL
Enable Services
Blocking
Available Service
Blocked Service
"Custom Port"
Type
Port Number
151
Select this check box to enable this feature.
This is a list of pre-defined services (ports) you may prohibit your LAN
computers from using. Select the port you want to block using the drop-down list
and click Add to add the port to the Blocked Service field.
This is a list of services (ports) that will be inaccessible to computers on your
LAN once you enable service blocking. Choose the IP port (TCP, UDP or TCP/
UDP) that defines your customized port from the drop down list box.
A custom port is a service that is not available in the pre-defined Available
Services list and you must define using the next two fields.
Services are either TCP and/or UDP. Select from either TCP or UDP.
Enter the port number range that defines the service. For example, suppose you
want to define the Gnutella service. Select TCP type and enter a port range from
6345-6349.
DESCRIPTION
Chapter 14 Firewall