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R-90 Series
21
4.8
LAN MAC Filtering
Your router can be configured to restrict access to the Internet, email or other network services.
Restrictions can be set for a single computer, a range of computers or multiple computers.
For example, to restrict Internet access for a single computer, enter the IP address of the computer you
wish to restrict access to in the IP field. Next, enter “80” in both port fields. Select “Block
”.
4.8.1
MAC Filtering
The MAC address filter is a powerful security feature that allows you to specify which computers are
allowed on your network. Any computer attempting to access your network must be specified in the filter
list or it will be denied access. When you enable this feature, you must enter the MAC address of each
client (computer) on your network in order to allow network access to each.
MAC Services Blocking can be set in three modes.
•
Disable. In this mode, there are no restrictions on any devices connected to the router, whether
through Wi-Fi or Ethernet ports
•
Deny. In this mode, the service table shows the client MAC address being blocked by the router.
•
Allow. In this mode, the service table shows the client MAC address allowed by the router.
To modify the service table (add, change address or remove clients), enter the correct value and click
“Apply”.
Note: You will not be able to delete the MAC address of the computer you are using to access the router’s
administrative functions.
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R-90 Series
22
4.9
WAN Setup
Clicking on the “WAN Setup” sub-heading in the “Advanced” list will take you to the “WAN Setup” page.
This is where you can enable or disable the router’s DMZ, Internet Ping, and HTTP-related items.
4.9.1
Demilitarized Zone (DMZ
)
The DMZ feature allows you to specify one computer on your internal network to be placed outside the
firewall. This may be necessary if the firewall is causing problems with a game, video conferencing, or
other application. Use this feature on a temporary basis. The computer in the DMZ is NOT protected from
hacker attacks.
4.9.2
WAN Ping Blocking
Computer hackers use what is known as “pinging” to find potential victims on the Internet. By pinging a
specific IP address and receiving a response, a hacker can determine that something of interest might be
at that IP address. You can set your router so it will not respond to a hacker’s ICMP ping, increasing the
level of security provided by your router.
If it is necessary to turn on the ping response, select “Allow Ping Response on WAN port” and click “Apply”.
4.9.3
Disable NAT
This feature disables all NAT router functionality.
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R-90 Series
23
4.10 LAN IP Setup
Clicking on the header of the “LAN IP Setup” tab will take you to its header page.
4.10.1
LAN TCP/IP Setup
The IP address in this instance is referring to the IP address that you use to log into your router (default
192.168.0.1).
If you change this, then in future you will need to log in using the new IP address that you
chosen.
There is no need to change the subnet mask. This is a unique, advanced feature of your router. It is
possible to change the subnet mask, if necessary. Do NOT make changes to the subnet mask unless you
have a specific reason to do so. The default setting is “255.255.255.0”.
4.10.2
Use the Router as a DHCP Server
The DHCP server function makes setting up a network very easy by assigning IP addresses to each
computer on the network automatically. The DHCP server can be turned OFF, if necessary. To do so,
you must manually set a static IP address for each computer on your network. To turn off the DHCP
server, de-select “Use router As DHCP Server” and click “Apply
”.
If at anytime you would like to see which devices are connected to your R-90, please press the DHCP
clients table button
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R-90 Series
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R-90 Series
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4.11 Dynamic DNS
Dynamic DNS (Domain Name Service) is a method for Dynamic IP users to notify a domain name server to
change, in real time (ad-hoc) the active DNS configuration of its configured hostnames, addresses, or other
information stored in DNS. Your router supports Dynamic DNS.
To use Dynamic DNS, check the “Enable
Dynamic DNS Service” box and complete the following items.
Service Provider: Select the appropriate Service Provider from the drop down menu and input the Host Name,
User Name, and your Password. This information should be the same information that you registered with
your Dynamic DNS service provider.
Use Wildcards: Click “Use Wildcards” to enable wildcards for this host or keep the box unchecked to disable
wildcards for this host. The wildcard alias *.yourhost.ourdomain.ext is the same address as
yourhost.ourdomain.ext.

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