TP-LINK TD-W8910GB User Manual

37 

 

Figure 4-25 

2. Enter 

the 

Filter name for the rule, it is exclusive and must be filled. 

3. Select 

the

protocol: TCP/UDP, TCP, UDP or ICMP in the drop-down list for the connection 

between the Source IP address and Destination IP address. 

4. Enter 

a 

Source IP Address in dotted-decimal notation format and then type the Source 

Subnet Mask and Source Port (port or port: port) in the text boxes separately. 

5. Enter 

a 

Destination IP Address in dotted-decimal notation format and then type the 

Destination Subnet Mask and  Destination Port (port or port:  port) in the text boxes 
separately. 

6. Click 

the 

Save/Apply button to save this entry. 

)

When you add an Outgoing IP Filtering entry, you must configure at least one condition on the 
screen above except the Filter name. If you leave the Protocol blank, it means that the rule is 
effective to all protocols, if you leave the Source IP Address and/or Destination IP Address blank, 
it suggests that all Source IP Addresses and/or Destination IP Addresses are controlled by the 
rule, if you leave the Source Port and/or Destination Port blank, it suggests that all Source Ports 
and/or Destination Ports are controlled by the rule. 

IP Filtering - Incoming 
Choose “Advanced Setup”Æ“Security”Æ“IP Filtering”Æ“Incoming”, you can configure 
Incoming Filtering rules on the screen (shown in Figure 4-26). 

The Incoming IP Filtering feature allows some IP traffic from WAN to access some local 
addresses. By default, all incoming IP traffic from the WAN is blocked when the firewall is enabled. 
However, some IP traffic can be ACCEPTED by setting up filters.