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Configuring the Network
Application (SPA122 Only)
Cisco SPA100Series Administration Guide 40
1
DMZ (SPA122 Only)
Use the Network Setup > Application > DMZ page if you need to allow a local device to be
exposed to the Internet for a special-purpose service.
The specified network device must have its DHCP client function disabled and must have a
reserved IP address (also known as a static IP address) to ensure that it is reachable at the
specified IP address. To reserve an IP address for a device, see Network Settings for the LAN
and DHCP Server (SPA122 Only), page 29.
NOTE A Demilitarized Zone (DMZ) is similar to Port Range Forwarding. Both features allow Internet
traffic to access a resource on your private network. However, Port Range Forwarding is more
secure because it only opens the ports that you specify for an application. DMZ hosting opens
all the ports of one device, exposing it to the Internet.
Enter the settings as described below. After making changes, click Submit to save your
settings, or click Cancel to redisplay the page with the saved settings.
Field Description
Status Click Enabled to enable this feature, or click Disabled to disable
it. Default setting: Disabled
Private IP Specify the local IP address of the device that can be accessed
through the DMZ.
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