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4.3.5 Virtual Server / Port Forwarding
Virtual Server is a method to direct network traffic from the
Internet to a specific port or a specific range of ports to a device or
number of devices on your local network.
If you configure the LTE Router as a virtual server, remote users
accessing services such as web or FTP at your local site via public
IP addresses can be automatically redirected to local servers
configured with private IP addresses. In other words, depending
on the requested service (TCP/UDP port number), the LTE Router
redirects the external service request to the appropriate server
(located at another internal IP address).
For example, if you set Type/Public Port to TCP/80 (Http or web)
and the Private IP/Port to 192.168.2.2:80, then all HTTP requests
from outside users will be transferred to 192.168.2.2 on port
80. Therefore, by just entering the IP address provided by the
ISP, Internet users can access the service they need at the local
address to which you redirect them.
NOTE
:
The more common TCP service ports include: HTTP: 80, FTP: 21,
Telnet: 23, and POP3: 110. A list of ports is maintained at http://www.
iana.org/assignments/port-numbers.
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37
4.3.6 DMZ
Virtual DMZ exposes one client to the Internet, allowing this
client to receive all inbound packets directed to your Local Area
Network.
Inbound traffic from the Internet is usually discarded and routed
to a specific client only if port forwarding or a port trigger has
been configured on the network. In a DMZ configuration, one
network client receives all inbound packets.
Setting up DMZ on a network is useful when you need incoming
ports open or you want to host a domain, web, or e-mail server.
CAUTION:
Opening all the ports on a client to the Internet makes the
network vulnerable to outside attacks. Please be aware of the security
risks involved in using DMZ.
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38
To set up DMZ:
1. From the navigation panel, go to
Advanced Settings
>
WAN
>
DMZ
tab.
2. Configure the setting below. When done, click
Apply
.
•
Enable DMZ:
Key in the last digit of the client’s LAN IP
address that will provide the DMZ service and be exposed
on the Internet. Ensure that the server client has a static IP
address. Tick
Enable
.
To remove DMZ:
1. Untick
Enable
, and click
Apply
.
Page 39 / 72
39
4.3.7 DDNS
Setting up DDNS (Dynamic Domain Name System) allows you
to access the router outside your network through the provided
DDNS service. The DDNS service, which maps a domain name to a
static or dynamic IP address, is powered by DynDNS.org.
With a DDNS connection, you can host a website, an email server,
an FTP site, and other Internet apps in your local area network
even when using dynamic IP addresses for the domain names.
To set up DDNS:
1. Select
DDNS Setting
from the dropdown list and click
Web
Site
to go to the DynDNS.org web site.
2. Complete the registration on the DDNS web site.
3. Enter the username, password and domain name of your DDNS
settings.
4. Click
Update Dynamic DNS
to update your IP address
configuration.
5. When done, click
Apply
.
Page 40 / 72
40
4.4
Firewall
4.4.1 General
The wireless router can serve as a hardware firewall for your
network. Set up the firewall to protect your network from
malicious attacks such as Denial of Service (DoS) attacks. DoS
attacks disable a device or network to deny users access to
network resources.
To set up basic Firewall settings:
1. From the navigation panel, go to
Advanced Settings
>
Firewall
>
General
tab.
2. On the
Enable Firewall
field, select
Enable
.
3. On the
Respond Ping Request from WAN
field, select
Yes
to
block hackers from pinging devices in your network from the
Internet.
4. Click
Apply
.

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