Cisco ATA 191 Administration Guide

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 19: Port Forwarding Settings
DescriptionField
Choose the type of port forwarding:
•
Single Port Forwarding: Forwards traffic for
a specified port to the same or an alternate port
on the target server in the LAN.
•
Port Range Forwarding: Forwards traffic to
a range of ports to the same ports on the target
server in the LAN. See the Internet application’s
documentation for the required ports or ranges.
Port Forwarding Type
For single port forwarding, choose a common
application from the drop-down list (such as Telnet,
or DNS).
To add an application that is not on the list, choose
Add a new name, and then enter the name in the
Enter a Name field.
Application Name
If you chose Port Range Forwarding, or if you chose
Add a new name in the Application Name list for
Single Port Forwarding, enter a name to identify the
application.
Enter a Name
For Single Port Forwarding, specify the ports to use.
For simplicity, the internal and external port numbers
are often the same. Different external port numbers
could be used to differentiate traffic of the same
application type intended for different servers, or for
privacy by using non-standard ports.
•
External port: For single port forwarding, enter
the port number that external clients use to set
up a connection with the internal server.
•
Internal port: For single port forwarding, enter
the port number that the ATA uses when
forwarding traffic to the internal server.
The correct entries appear automatically if you choose
a standard application from the Application Name
list for Single Port Forwarding.
External Port, Internal Port
For Port Range Forwarding, specify the range of ports
to use. Valid values are from 1 to 65535.
Start - End Port
Cisco ATA 191 and ATA 192 Analog Telephone Adapter Administration Guide for Multiplatform Firmware
30
Network Configuration
Manually Add Port Forwarding (ATA 192 Only)

Cisco ATA 191 Specifications

General

Fax Support	T.38 Fax Relay
Relative Humidity	10% to 90% (non-condensing)
Ports	2 FXS ports
Voice Protocol	SIP
Protocols	SIP, RTP, RTCP
Power	5V DC
Network Interfaces	10/100BASE-T Ethernet port
Operating Temperature	32°F to 104°F (0°C to 40°C)
Audio Codecs	G.711 (a-law and μ-law), G.729a, G.722, G.726
Voice Codecs	G.711 (a-law and μ-law), G.729a, G.722, G.726
Storage Temperature	14 to 140°F (-10 to 60°C)