iCable System ICS-G302, Operator'S Manual, Page: 37 / 63

Page 37
3.5 NAT/Conf
UPnP Configuration
This S-MTA supports both UPnP IGD and CP functions, but these two functions
can be selected only one function, that is to say, these two functions are mutually
exclusive.
UPnP IGD Enables UPnP IGD (Internet Gateway Device)
Function. When you don’t use a broadband router, and
this S-MTA receives a public IP address, then please
enable this UPnP IGD function.
UPnP CP Enables UPnP CP(Control Point) Function.
When this S-MTA is connected to a broadband router
supporting UPnP IGD, you should enable this UPnP
CP function to enable VoIP service.
STUN Configuration
STUN This feature allows MTA to connect to the Proxy server
in NAT environment. To enable this feature, click on
Enable, and click Submit button. To disable this feature,
click on Disable.
Primary STUN
Server IP
Enter the IP address you wish to connect to the STUN
server.
Secondary STUN
Server IP
STUN Information
Current STUN Server
MTA Public IP
Enter the STUN server Port.
STUN client Displays the status after it communicating
with STUN server
( Open Internet, Full-Cone NAT, IP Restrict NAT,
Port Restrict NAT, Symmetric NAT, Symmetric Firewall
STUN server unreachable )
Displays the current server
Displays the public IP of Brodband Router in front of TA