Asus DSL-N12HP User Manual page 51

To add a filter (to allow incoming IP traffic), click the Add button.
On the following screen, enter your filter criteria and then click
Apply/Save.
Consult the table below for field descriptions.
Field
Filter Name
IP Version
Protocol
Policy
Source IP address
Source Port (port or port:port)
Destination IP address
Destination Port (port or port:port)
At the bottom of this screen, select the WAN and LAN Interfaces to
which the filter rule will apply. You may select all or just a subset.
WAN interfaces in bridge mode or without firewall enabled are
not available.
Description
The filter rule label.
Select from the drop down menu.
TCP, TCP/UDP, UDP, or ICMP.
Permit/Drop packets specified by the
firewall rule.
Enter source IP address.
Enter source port number or range.
Enter destination IP address.
Enter destination port number or range.
51