4. Web Configuration
37
Filter Types
When setting up filter rules, you can define the Filter rules based
on the LAN machine’s MAC address, IP address or the protocol
type of the data packet. Each filter type is described as below.
Note:
Based on OSI reference model, MAC Filters demand higher
priority than IP Filters while IP Filters higher than Port Filters.
MAC Filters:
The MAC address of the LAN machine from which
packets are allowed (or prohibited) to pass through the WAN port.
Up to 12 entries are allowed.
IP Filters:
The range of IP addresses of the LAN machines from
which packets are allowed (or prohibited) to pass through the WAN
port. You may enter the same address in both (Start and End)
fields to define a single IP address. Up to 5 entries are allowed.
TCP Port Filters:
Allows (or prohibits) certain LAN machine to use
TCP based service in the specified port range through the WAN
port. Up to 12 entries are allowed.
For example, to allow (or prohibit) local PC 192.168.1.210 to use
FTP service (using TCP port 21):
IP Address
Start
End
192.168.1.210
20 21
UDP Port Filters:
This field allows you to allow (or prohibit) certain
LAN machine to use UDP based service in the specified port range
through the WAN port. Up to 12 entries are allowed.
For example, to allow (or prohibit) local PC 192.168.1.210 to use
ping service (using UDP port 53):
IP Address
Start
End
192.168.1.210 53
53
