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802.11n WLAN ADSL2+ Router
IP/Port Filtering
From the left-hand
•
Services
menu, click on
Firewall -> IP/Port Filtering
.
Fields on the first setting
block
Description
Outgoing Default Action
Specify the default action on the LAN to WAN
forwarding path.
Incoming Default Action
Specify the default action on the WAN to LAN
forwarding path.
Function Button Description
Apply Changes
Click to save the setting of default actions to the configuration.
Fields on the second
setting block
Description
Rule Action
Deny or allow traffic when matching this rule.
Direction
Traffic forwarding direction.
Protocol
There are 3 options available: TCP, UDP and ICMP.
Source IP Address
The source IP address assigned to the traffic on which
filtering is applied.
Source Subnet Mask
Subnet-mask of the source IP.
Source Port
Starting and ending source port numbers.
Destination IP Address
The destination IP address assigned to the traffic on
which filtering is applied.
Destination Subnet Mask
Subnet-mask of the destination IP.
Destination Port
Starting and ending destination port numbers.
Function Button Description
Apply Changes
Click to save the rule entry to the configuration.
