Symantec 20032623 - Endpoint Protection Small Business Edition Implementation Manual page 225

Allowing only specific traffic to the local subnet
You can create a firewall rule that permits only specific traffic to your local subnet.
This firewall rule always applies to your local subnet IP address, regardless of
what the address is. Therefore, even if you change your local subnet IP address,
you never have to modify this rule for the new address.
For example, you can create this rule to permit traffic to port 80 only on the local
subnet, regardless of what the local subnet IP address is.
To allow only specific traffic to the local subnet
1
In the console, open a Firewall policy.
2
On the Firewall Policy page, click Rules.
3 On the Rules tab, in the Rules list, select the rule that you want to edit.
4 Click Customize the default settings to access the list of default settings.
5 In the Firewall Rules table, in the Host column, double-click on the rule for
which you want to create a local subnet traffic condition.
6 Under the type of hosts for which this rule applies (Local or Remote), click
Add.
7 Click the Address Type drop-down list and select Local Subnet.
8
Click OK, and then click OK again to close out of the Host List dialog box.
See The types of security policies"
See Editing a policy"
See Customizing firewall rules"
Controlling whether networked computers can share messages,
files, and printing
Network services let networked computers send and receive messages, shared
files, and print. You can create a firewall rule that allows or blocks network
services.
You can add a custom network service through a firewall rule. However, that
network service is not added to the default list. You cannot access the custom
service from any other rule.
To control whether networked computers can share messages, files, and printing
1 In the console, open a Firewall policy.
2
On the Firewall Policy page, click Rules.
on page 118.
on page 122.
on page 221.
Managing firewall protection
Setting up firewall rules
225