Huawei B970 User Manual

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Security Settings (Optional)
Click Security. You can configure the advanced 
security settings.
 
Firewall Switch
Your device has a true firewall that controls the 
incoming and outgoing data flow and protects your 
computer from illegal intrusion.
 
1
Click 
 .
 
2
Select the Enable the firewall (main switch of 
the firewall)
 check box to enable the firewall.
 Note
 
• Only when the Enable the firewall 
check box is selected, the other 
functions such as the IP address filter 
function, the MAC address filter function, 
and the WAN port ping function are 
available.
• When the Enable LAN MAC address 
filter check box is selected, the default 
filter rules are available.
 
3
Select other options as required, and then click 
Apply.
 
LAN MAC Filter
Your device supports MAC filtering based on a list of 
either denied or allowed computers. A common 
method to restrict network access is to specify the 
Media Access Control (MAC) address.
To locate the MAC address in the Windows OS, 
choose Start > Run, and then enter cmd.
The command window is displayed, enter ipconfig /
all
, and then press Enter.
The MAC address is displayed as the Physical 
Address
.
 
1
Click 
 .
 
2
Select LAN MAC Filter Mode.
 
3
Enter the MAC addresses of the clients and click 
Apply.
 
LAN IP Filter
You can configure the device to block specific IP
 addresses so that they cannot be accessed from