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11N Broadband Wireless Router
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Note:
If you include port 80 on this section, you must set the port for remote
(web-based) management to a different number than 80, such as 8080, otherwise
the virtual server feature may not take effect.
4.2 DMZ Host
The DMZ (De-Militarized Zone) function disables the firewall on the router for
one device for a special purpose service such as Internet gaming or video
conferencing. Enabling DMZ host may expose your local network to potential
attacks. So it is advisable to use it with caution.
DMZ Host IP Address:
The IP Address of the device for which the router’s
firewall will be disabled. Be sure to statically set the IP Address of that device
for this function to be consistent.
Enable:
Check/uncheck to enable/disable the DMZ host feature.
OK:
Click to enable your settings.
Note:
Once enabled, the DMZ host loses protection from device's firewall and
becomes vulnerable to attacks.
4.3 DDNS
Dynamic DNS or DDNS is a term used for the updating in real time of Internet
Domain Name System (DNS) name servers. Dynamic DNS or DDNS is a term
used for the updating in real time of Internet Domain Name System (DNS) name
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servers. We use a numeric IP address allocated by Internet Service Provider (ISP)
to connect to Internet; the address may either be stable ("static"), or may change
from one session on the Internet to the next ("dynamic"). However, a numeric
address is inconvenient to remember; an address which changes unpredictably
makes connection impossible. The DDNS provider allocates a static host name
to the user; whenever the user is allocated a new IP address this is
communicated to the DDNS provider by software running on a computer or
network device at that address; the provider distributes the association between
the host name and the address to the Internet's DNS servers so that they may
resolve DNS queries. Thus, uninterrupted access to devices and services whose
numeric IP address may change is maintained. (You need to have an account
with one of the Service Providers in the drop-down menu first.)
DDNS Service:
Select to enable/disable the DDNS feature.
Service Provider:
Select your DDNS service provider from the drop-down
menu. (Here you can see a list of available service providers. Note that service
providers not listed here are not available for use.)
User Name:
Enter the registered user name.
Password:
Enter the registered password.
Domain Name:
Enter the domain name you register, say, tenda.dyndns.org.
OK:
Click to activate your settings.
Note:
This feature is usually used together with virtual server and is disabled by
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default. Configure necessary settings on port forwarding interface and enter the
information provided by your DDNS service provider on the DDNS screen.
Others can access your web server by simply entering http://tenda.dyndns.org in
their browser address bar.
4.4 UPNP
The Universal Plug and Play (UPnP) feature allows network devices, such as
computers from Internet, to access resources on local host or devices as needed.
UPnP-enabled devices can be discovered automatically by the UPnP service
application on the LAN. This feature is enabled by default. No settings are
required.
Enable UPnP:
Check/uncheck to enable/disable the UPnP feature.
OK:
Click to complete your settings.
4.5 Static Routing
When there are several routers in the network, you may want to set up static
routing. Static routing determines the path of the data in your network. You can
use this feature to allow users on different IP domains to access the Internet via
this device. It is not recommended to use this setting unless you are familiar with
static routing. In most cases, dynamic routing is recommended, because this
feature allows the router to detect the physical changes of the network layout
automatically. If you want to use static routing, make sure the rou
ter’s DHCP
function is disabled.
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1.
Destination Network IP Address
: Specify a single IP address, say,
172.17.0.100, or an IP net segment, .say, 192.168.88.0.
2.
Subnet Mask
: Specify a Subnet Mask that corresponds to the specified
destination IP.
3.
Gateway
: Specify the IP address for next hop.
4.
OK:
Click to activate your settings.
Note:
1.
Gateway must be on the same IP net segment as device's LAN/WAN IP
address.
2.
Subnet Mask must be entered 255.255.255.255 if destination IP address is a
host.
3.
Subnet Mask must be entered accordingly if destination IP address
represents an IP network segment. It must correspond to the specified IP
address. For example, for IP address of 10.0.0.0, you may enter a subnet
mask of 255.0.0.0.
4.6 Routing Table
This page displays the device core routing table which lists destination IP, subnet
mask, gateway, hop count and interface.
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The principal task for a router is to look for an optimal transfer path for each
data packet passing through it, and transfer it to the specified destination. To
complete this work, the router stores and maintains related data of various
transfer paths, i.e. establishing a routing table, for future route selection.
５
Security
5.1
URL Filter
To better control LAN PCs, you can use the URL filter functionality to allow or
disallow such PCs to access certain websites within a specified time range.

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