User`s manual

Internet Security Router User’s Manual Chapter 9. Configuring Firewall/NAT Settings
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4. Make changes to any or all of the following fields: source/destination IP, source/destination port,
protocol, port mapping, time ranges, application filtering, log, and VPN. Please see Table 9.1 for
explanation of these fields.
5. Assign a priority for this rule by selecting a number from the “Move to” drop-down list. Note that
the number indicates the priority of the rule with 1 being the highest. Higher priority rules will be
examined prior to the lower priority rules by the firewall.
6. Click on the button to create the new ACL rule. The new ACL rule will then be displayed in
the inbound access control list table at the bottom half of the Inbound ACL Configuration page.
Figure 9.8 illustrates how to create a rule to allow inbound HTTP (i.e. web server) service. This rule allows
inbound HTTP traffic to be directed to the host w/ IP address 192.168.1.28.
9.3.4 Modify Inbound ACL Rules
To modify an inbound ACL rule, follow the instructions below:
1. Open the Outbound ACL Rule Configuration Page (see section 9.3.2 Access Inbound ACL Rule
Configuration Page).
2. Click on the icon of the rule to be modified in the inbound ACL table or select the rule number
from the “ID” drop-down list.
3. Make desired changes to any or all of the following fields: action, source/destination IP,
source/destination port, protocol, port mapping, time ranges, application filtering, log, and VPN.
Please see Table 9.1 for explanation of these fields.
4. Click on the button to modify this ACL rule. The new settings for this ACL rule will then be
displayed in the inbound access control list table at the bottom half of the Inbound ACL
Configuration page.
9.3.5 Delete Inbound ACL Rules
To delete an inbound ACL rule, click on the in front of the rule to be deleted follow the instructions below:
1. Open the Outbound ACL Rule Configuration Page (see section 9.3.2 Access Inbound ACL Rule
Configuration Page).
2. Click on the icon of the rule to be deleted in the inbound ACL table or select the rule number
from the “ID” drop-down list.
3. Click on the button to delete this ACL rule. Note that the ACL rule deleted will be
removed from the ACL rule table located at the bottom half of the same configuration page.
9.3.6 Display Inbound ACL Rules
To see existing inbound ACL rules, just open the Inbound ACL Rule Configuration page as described in
section 9.3.2 Access Inbound ACL Rule Configuration Page.
9.4 Configuring Outbound ACL Rules
By creating ACL rules in outbound ACL configuration page as shown in Figure 9.9, you can control (allow or
deny) Internet or external network access for computers on your LAN.
Options in this configuration page allow you to:
„ Add a rule, and set parameters for it
„ Modify an existing rule
„ Delete an existing rule
„ View configured ACL rules