ZyXEL P-2601HN-F1 User Guide - Page 162

Table 41, Note: These rules specify which computers on the LAN can access which computers

Page 162 highlights

Chapter 13 Firewall Note: These rules specify which computers on the LAN can access which computers or services on the WAN. Figure 73 Security > Firewall > Services 162 Each field is described in the following table. Table 41 Security > Firewall > Services LABEL LAN-to-WAN Services Blocking Available Services DESCRIPTION Select Enable to activate service blocking. This is a list of pre-defined services (destination ports) you may prohibit your LAN computers from using. Select the port you want to block, and click Add to add the port to the Blocked Services field. Blocked Services Type Port Number Add A custom port is a service that is not available in the pre-defined Available Services list. You must define it using the Type and Port Number fields. See Appendix E on page 323 for some examples of services. This is a list of services (ports) that are inaccessible to computers on your LAN when service blocking is effective. To remove a service from this list, select the service, and click Delete. Select TCP, UDP or TCP and UDP, based on which one the custom port uses. Enter the range of port numbers that defines the service. For example, suppose you want to define the Gnutella service. Select TCP type and enter a port range of 6345-6349. Click this to add the selected service in Available Services to the Blocked Services list. Note that the service is blocked immediately after clicking this. P-2601HN(L)-F1 Series User's Guide

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Chapter 13 Firewall
P-2601HN(L)-F1 Series User’s Guide
162
Note: These rules specify which computers on the LAN can access which computers
or services on the WAN.
Figure 73
Security > Firewall > Services
Each field is described in the following table.
Table 41
Security > Firewall > Services
LABEL
DESCRIPTION
LAN-to-WAN
Services
Blocking
Select
Enable
to activate service blocking.
Available
Services
This is a list of pre-defined services (destination ports) you may prohibit
your LAN computers from using. Select the port you want to block, and
click
Add
to add the port to the
Blocked Services
field.
A custom port is a service that is not available in the pre-defined
Available Services
list. You must define it using the
Type
and
Port
Number
fields. See
Appendix E on page 323
for some examples of
services.
Blocked
Services
This is a list of services (ports) that are inaccessible to computers on
your LAN when service blocking is effective. To remove a service from
this list, select the service, and click
Delete
.
Type
Select
TCP
,
UDP
or
TCP and UDP
, based on which one the custom port
uses.
Port Number
Enter the range of port numbers that defines the service. For example,
suppose you want to define the Gnutella service. Select
TCP
type and
enter a port range of
6345-6349
.
Add
Click this to add the selected service in
Available Services
to the
Blocked Services
list. Note that the service is blocked immediately
after clicking this.