User manual

DIR-620 Multifunction Wireless Router Supporting GSM, CDMA, WiMAX
with Built-in 4-port Switch
User Manual
Configuring via Web-based Interface
Firewall
In this menu you can configure the firewall of the router: add rules for IP filtering, define Dynamic
NAT rules, and create virtual servers. In addition, you can add URL filters to the system, enable
protection against ARP and DDoS attacks, and configure the Port Triggering function.
IP Filters
On the Firewall > IP filters page, you can create new rules for filtering IP packets and edit or
remove existing rules.
Figure 52. The Firewall > IP filters page.
Rules for IP filtering are presented as a table. The rules are processed in the listed order
(downwards). The arrow buttons located to the right of the rule table are used to change the order of
rules (to move a rule up or down).
To create a new rule, click the Add rule link.
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