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Page 86 / 142 Scroll up to view Page 81 - 85
To access the
Port Triggers
page:
1
Click
Router
in the menu tab.
2
Then click the
Advanced/Port Triggers
submenu.
3
To add a new rule, click on the
Create
Rule
button.
Figure 20 shows an example of the menu and Table 20 describes the items you can
select.
Figure 20. Example of port Triggers Page
To activate a port trigger
1
Enter the trigger and target ports range for the Internet traffic to forward to.
2
Select the forwarding protocol(s).
3
Enter a name for your port triggering rule.
4
Select ON for the
Enable
box to enable Port Triggering.
5
Click the
Apply
button to activate the forwarding rules.
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Table 20. Port Triggers Menu Option
Option
Description
Trigger Range
(Start / End
Port)
Enter the trigger range (starting and ending ports) of the application
for which you want to enable port triggering. The application will
send data from these ports.
Target Range
Enter the target range (starting and ending ports) to open for the
same application. The application will receive data on these ports.
(Start / End
Port)
Select the protocol for this rule.
Protocol
Description
Enter the Description name here.
Enable
Select ON or OFF to enable Port Triggering rule.
DMZ Host
The DMZ (De-militarized Zone) Host page allows you to configure a network device (e.g.
a PC) to be exposed or visible directly to the Internet. This may be used if an application
doesn’t work with port triggers. If you have an application that won’t run properly behind
the NAT firewall, you can configure it for unrestricted two-way Internet access by defining
it as a virtual DMZ host. Adding a client to the DMZ may expose your local network to
various security risks because the client is not protected, so use this option as a last
resort.
To access the
DMZ Host
page:
1
Click the
Router
menu tab.
2
Then click the
Advanced
/
DMZ Host
submenu.
Figure 21 shows an example of the menu.
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Figure 21. Example of DMZ Host Page
To configure DMZ settings:
1
Enter the last byte of the LAN IP address of the PC or other device on your network
that you want to configure as a DMZ host.
2
Click
Apply
.
Note:
If a specific PC is set as a DMZ Host, remember to set this back to “0” when
finished with the needed application, since this PC will be effectively exposed to the
public Internet.
Note:
You may need to assign your DMZ host a static IP address on your LAN to
insure that it will always be at that address.
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DDNS
The DDNS page allows you to make use of a DDNS server. Dynamic DNS (DDNS)
allows a dynamic IP address to be aliased to a static, pre-defined host name so that the
host can be easily contacted by other hosts on the internet even if its IP address
changes. This means you can host a server on your LAN that can be accessed from
anywhere on the Internet.
Caution:
Some service providers may consider connection of such a server to be a
breach of your service agreement.
The Cable Modem/Router supports a dynamic DNS client compatible with the Dynamic
DNS service (
). You must sign up with this service if you want to
use it.
To access the
DDNS
page:
1
Click
Router
in the menu tab.
2
Then click the
Advanced/DDNS
submenu.
Figure 22 shows an example of the menu and Table 21 describes the items you can
select.
Figure 22. Example of DDNS Page
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To activate the DDNS client:
1
Go to the DynDNS website and create an account for the
Dynamic DNS
service.
2
You will create a
username
and
password
, and be asked to choose a
host name
for your server, and the dynamic DNS domain to which your host will be assigned.
3
You will also be asked for your host’s current
IP address
. This is the WAN IP
address that has been assigned to your Cable Modem/Router during provisioning.
(See WAN IP Address on the Router tab, Basic/My Network page)
4
Enter your account information on the Advanced / DDNS web page, enable the
service by selecting www.DynDNS.org from the
DDNS Service
drop-down list, and
click
Apply
.
5
The DDNS client will notify the DDNS service whenever the WAN IP address
changes so that your chosen host name will be resolved properly by inquiring hosts.
The current status of the service is shown at the bottom of the DDNS web page.
Table 21. DDNS Menu Option
Option
Description
Select the type of service that you are registered for from your
DDNS service provider.
DDNS Service
Enter your DDNS account username subscribed to the service
provider.
User Name
Enter the password of the account.
Password
Enter the host name of your service host.
Host Name
Shows the current WAN side public IP address.
IP Address
Shows the status of DDNS service.
Status
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