TD-8840T ADSL2+ Modem Router User Guide
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4.9 Firewall
There are five submenus under the Firewall menu: Rule, LAN Host, WAN Host, Schedule and
DDoS. Click any of them, and you will be able to configure the corresponding function.

4.9.1 Rule

Choose menu “Firewall Rule”, and then you can view and set the rules in the screen as
shown in Figure 4-33.
Figure 4-33
¾ Enable Firewall: Select the check box to enable the Firewalll function, so the Default Filtering
Rules can take effect.
¾ Description: Here displays the description of the rule and this name is unique.
¾ LAN Host: Here displays the host selected in the corresponding rule.
¾ Target: Here displays the target selected in the corresponding rule.
¾ Schedule: Here displays the schedule selected in the corresponding rule.
¾ Status: Here displays the status of the rule, enabled or not.
¾ Edit: Here you can edit or delete an existing rule.
¾ Add New: Click the Add New button to add a new rule entry.
¾ Enable Selected: Click the Enable Selected button to enable the selected rules in the list.
¾ Disable Selected: Click the Disable Selected button to disable the selected rules in the list.