Dmz (Ata 192 Only) - Cisco ATA 191 Administration Manual

Network Configuration
Field
Protocol
IP Address
Enabled

DMZ (ATA 192 Only)

Use the Network Setup > Application > DMZ page if you want a local device exposed to the Internet for
a special-purpose service.
The specified network device must have its DHCP client function disabled. It must also have a reserved IP
address to ensure that it is reachable at the specified IP address.
A Demilitarized Zone (DMZ) is similar to Port Range Forwarding. Both features allow Internet traffic to
Note
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. After making changes, click Submit to save your settings, or click Cancel to
redisplay the page with the saved settings.
Table 20: DMZ Settings
Field
Staus.
Private IP.
Cisco ATA 191 and ATA 192 Analog Telephone Adapter Administration Guide for Multiplatform Firmware
Description
Select the protocols that can be forwarded: TCP,
UDP, or TCP and UDP.
Enter the IP address of the local server that receives
forwarded traffic.
For correct forwarding of traffic, local servers must
either be configured with a static IP address, or be
assigned a reserved IP address through DHCP. Use
the Interface Setup > LAN > DHCP Server page to
reserve IP addresses.
Check the box to enable this port forwarding rule, or
uncheck the box to disable it.
Default setting: Disabled
Description
Click Enabled to enable this feature, or click
Disabled to disable it.
Default setting: Disabled
Specify the local IP address of the device that can be
accessed through the DMZ.
DMZ (ATA 192 Only)
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