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Wireless Modem Router User Guide
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_________________________________________________________________________________________________
Warning!
DMZ servers pose a security risk. A computer designated as the DMZ server loses much of the protection of the firewall
and is exposed to exploits from the Internet.
_________________________________________________________________________________________________
4.2.5 Security
This section explains the following information:
•
IP Filtering
•
MAC Filtering
IP Filtering
Outgoing IP Filtering Setup
By default, all outgoing IP traffic from LAN is allowed, but some IP traffic can be
BLOCKED
by setting up filters.
Choose Add or Remove to configure outgoing IP filters.
Choose
Add
to enter the following screen:
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Wireless Modem Router User Guide
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This screen allows you to create a filter rule to identify outgoing IP traffic by specifying a new filter name and at least
one condition below. All of the specified conditions in this filter rule must be satisfied for the rule to take effect. Click
'Apply/Save' to save and activate the filter.
Filter Name:
Enter a descriptive filtering name.
IP Version:
Select either IPv4 or IPv6.
Protocol:
TCP/UDP, TCP, UDP and ICMP are available for your option.
Source IP address [/prefix length]:
Enter the LAN IP address to be filtered.
Source Port (port or port: port):
Specify a port number or a range of ports used by LAN PCs to access Internet. If
you are unsure, leave it blank.
Destination IP address [/prefix length]:
Specify the external network IP address to be accessed by specified LAN
PCs.
Destination Port
(port or port:port)
:
Specify a port number or a range of ports used by LAN PCs to access external
network.
Incoming IP Filtering Setup
When the firewall is enabled on a WAN or LAN interface, all incoming IP traffic is BLOCKED. However, some IP
traffic can be
ACCEPTED
by setting up filters.
Choose Add or Remove to configure incoming IP filters.
Click
Add
to enter the following screen:
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Wireless Modem Router User Guide
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This screen allows you to create a filter rule to identify incoming IP traffic by specifying a new filter name and at least
one condition below. All of the specified conditions in this filter rule must be satisfied for the rule to take effect. Click
Apply/Save
to save and activate the filter.
IP Version:
Select either IPv4 or IPv6.
Protocol:
TCP/UDP, TCP, UDP and ICMP are available for your option.
Source IP address [/prefix length]:
Enter the Internal IP address [/prefix length]
to be filtered.
Source Port (port or port: port):
Specify a port number or a range of ports used by PCs from external network to
access your internal network.
Destination IP address [/prefix length]:
Specify the internal network IP address [/prefix length]
to be accessed by
the specified PCs from external network.
Destination Port
(port or port:port)
:
Specify a port number or a range of ports used by PCs from external network
to access your internal network.
MAC Filtering
A bridge WAN service is needed to configure this service.
MAC Filtering is only effective on ATM PVCs configured in Bridge mode.
FORWARDED
means that all MAC layer
frames will be FORWARDED except those matching with any of the specified rules in the following table.
BLOCKED
means that all MAC layer frames will be BLOCKED except those matching with any of the specified rules in the
following table.
Choose Add or Remove to configure MAC filtering rules.
_________________________________________________________________________________________________
Warning!
Changing from one policy to another of an interface will cause all defined rules for that interface to be REMOVED
AUTOMATICALLY! You will need to create new rules for the new policy.
_________________________________________________________________________________________________
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Wireless Modem Router User Guide
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Click
Add
to enter the following screen:
Here you can create a filter to identify the MAC layer frames by specifying at least one condition below. If multiple
conditions are specified, all of them take effect. Click
Save/Apply
to save and activate the filter.
Protocol Type:
Select a protocol type from the drop-down list.
Destination MAC Address:
Enter the destination MAC address apply the MAC filtering rule to which you wish to
apply the MAC filtering rule.
Source MAC Address:
Enter the source MAC address to which you wish to apply the MAC filtering rule.
Frame Direction:
Select a frame direction from the drop-down list.
WAN Interfaces:
Select a WAN interface from the drop-down list.
4.2.6 Parental Control
This section explains the following information:
•
Time Restriction
•
URL Filter
Time Restriction
Click
Parental Control -> Time Restriction -> Add
to enter the following screen.
Here you can add time of day restriction that an attached LAN device can access Internet.
The 'Browser's MAC Address' automatically displays the MAC address of the LAN device where the browser is running.
To restrict other LAN device, click the "Other MAC Address" button and enter the MAC address of the other LAN
device.
User Name:
Enter a user name.
Browser's MAC Address:
Automatically adds the MAC address of the attached LAN device where the browser is
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running.
Other MAC Address:
Specify the MAC address of the computer that you want to apply Internet access restriction.
Days of the week:
Click to select the days of the week during which you wish to restrict Internet access.
Start Blocking Time/ End Blocking Time:
Specify time of day restriction to an attached LAN device. Within this
specified time length of the day, this LAN device will be blocked from Internet.
Apply/Save:
Click to
Apply/Save your settings.
URL Filter
Here you can add URL access restriction to specific LAN PCs.
Select the
URL List Type
(Exclude or Include) first and then click
Add
to enter the screen below for configuring the list
entries. Maximum 100 entries can be configured.
URL Address:
Enter the URLs that a specific LAN PC cannot access.
Port Number:
Specify the port number used by the web server. The default is 80, which is the standard protocol for web
servers.
Enter the URL address and port number then click "Apply/Save" to add the entry to the URL filter.

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