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3.4.2 Filtering
It implements permission or prohibition of access for appointed data flow via configuration of
some matching rules so as to filter the network interface data. After message is received by port of
router, the field is analyzed according to the rule applied on the current port. And after the special
message is identified, the permission or prohibition of corresponding packet is implemented
according to present strategy.
To enable Access Control from the navigation tree, select Firewall >> Filtering, then enter
“Filtering” page.
Table 3-4-2 Filtering Parameters
Access Control of Firewall
Function description: Control the protocol, source/destination address and source/destination
port passing through network packet of the router to provide a safe intranet.
Parameters
Description
Default
Enable
Check to enable filtering.
Enable
Protocol
Select all/TCP/UDP/ICMP
ALL
Source address
Set source address of access control
0.0.0.0/0
Source Port
Set source port of access control
Not
available
Destination
Address
Set destination address
N/A
Destination
Port
Set destination port of access control
Not
available
Action
Select accept/block
Accept
Log
Click to enable log and the log about access control will be
recorded in the system.
Disable
Description
Convenient for recording parameters of access control
N/A
3.4.3 Content Filtering
Configuration of mapping rules is generally used to disable access to network settings.
From navigation tree, select "Firewall>>Content Filtering" menu, then enter “Content Filtering”
page.
Table 3-4-3 Content - Filtering Parameters
Filtering
Function description: Set settings of firewall related to filtering and generally set forbidden
