User`s manual

Internet Security Router User’s Manual Chapter 9. Configuring Firewall/NAT Settings

Field Description

network.

IP Address This option allows you to specify an IP address on which this rule will be

applied.

IP Address Specify the appropriate network address

Subnet This option allows you to include all the computers that are connected in an

IP subnet. When this option is selected, the following fields become

available for entry:

Address Enter the appropriate IP address.

Mask Enter the corresponding subnet mask.

Range This option allows you to include a range of IP addresses for applying this

rule. The following fields become available for entry when this option is

selected:

Begin Enter the starting IP address of the range

End Enter the ending IP address of the range

IP Pool This option allows you to associate a pre-configured IP pool with this rule.

The available IP pool can be selected from the IP pool drop-down list.

Destination IP

This option allows you to set the destination network to which this rule should apply. Use the drop-

down list to select one of the following options:

Any This option allows you to apply this rule to all the computers in the

destination network, such as those on the Internet.

IP Address, Subnet,

Range and IP Pool

Select any of these and enter details as described in the Source IP section

above.

Source Port

This option allows you to set the source port to which this rule should apply. Use the drop-down list to

select one of the following options:

Any Select this option if you want this rule to apply to all applications with an

arbitrary source port number.

Single This option allows you to apply this rule to an application with a specific

source port number.

Port Number Enter the source port number

Range Select this option if you want this rule to apply to applications with this port

range. The following fields become available for entry when this option is

selected.

Begin Enter the starting port number of the range

End Enter the ending port number of the range

Destination Port

This option allows you to set the destination port to which this rule should apply. Use the drop-down

list to select one of the following options:

Any Select this option if you want this rule to apply to all applications with an

arbitrary destination port number.