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When you finish, click ‘Apply Changes’. You’ll see the following message
displayed on web browser:
Press ‘Continue’ to save the settings made and back to web management
interface; press ‘Apply’ to save the settings made and restart the router so the
settings will take effect after it reboots.
5.2.6.4. IGMP Proxy
When “IGMP Proxy” (Internet Group Management Protocol Proxy) is enabled, the
router can make intelligent multicast forwarding decisions by examining the
contents of each frame’s IP header. Without the function, the router will
broadcast the multicast packets to each port and may create excessive traffic on
the network and degrade the performance of the network.
The IGMP Proxy page allows you to enable multicast on WAN and LAN
interfaces. The LAN interface is always served as downstream IGMP proxy, and
you can configure one of the available WAN interfaces as the upstream IGMP
proxy. Upstream is the interface that IGMP requests from hosts are sent to the
multicast router. Downstream is the interface data from the multicast router are
sent to hosts in the multicast group database.
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Parameter
Description
IGMP Proxy
Enable or disable IGMP proxy feature.
Proxy Interface
The upstream WAN interface is selected here.
When you finish, click ‘Apply Changes’. You’ll see the following message
displayed on web browser:
Press ‘Continue’ to save the settings made and back to web management
interface; press ‘Apply’ to save the settings made and restart the router so the
settings will take effect after it reboots.
5.2.7.
Firewall
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Firewall contains several features that are used to deny or allow traffic from
passing through the router.
5.2.7.1. IP/Port Filtering
The IP/Port filtering feature allows you to deny/allow specific services or
applications in the forwarding path.
Parameter
Description
Outgoing Default
Action
Specify the default action on the LAN to WAN (Traffic to
Internet) forwarding path. You can choose ‘Allow’ if you
allow the IP Addresses listed in the following table to
connect to the Internet; choose ‘Deny’ if you deny the IP
Addressed listed in the following table to connect to the
Internet.
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Incoming Default
Action
Specify the default action on the WAN to LAN (Traffic
from Internet) forwarding path. You can choose ‘Allow’ if
you allow the IP Addresses listed in the following table
from connecting to the Internet; choose ‘Deny’ if you
deny the IP Addressed listed in the following table from
connecting
to the Internet.
Direction
Select the traffic forwarding direction: outgoing or
incoming.
Protocol
There are 3 options available: TCP, UDP and ICMP.
Rule Action
Deny or allow traffic when matching this rule.
Source IP Address
Enter the start IP Address which will be monitored.
Subnet Mask
Enter the Subnet Mask based on the Source IP Address.
Port
LAN users use port number to distinguish one network
application over another such as 21 is for FTP service.
The port number range is from 0 to 65535. It is
recommended that this option be configured by an
advanced user.
Destination IP Address Enter the destination IP Address which will be monitored.
Subnet Mask
Enter the Subnet Mask based on the Destination IP
Address.
Port
This is the port or port ranges that define the application.
Current Filter Table
If you want to remove some IP/Port filter settings from
the "Current Filter Table", select the items you want to
remove in the list and then click "Delete Selected". If you
want remove all the items from the table, just click
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"Delete All" button.
When you finish, click ‘Apply Changes’. You’ll see the following message
displayed on web browser:
Press ‘Continue’ to save the settings made and back to web management
interface; press ‘Apply’ to save the settings made and restart the router so the
settings will take effect after it reboots.
5.2.7.2. MAC Filtering
The MAC filtering feature allows you to define rules to allow or deny frames
through the router based on source MAC address, destination MAC address, and
traffic direction.

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