VP-12, VP-12P IP phones. Operation manual
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Client Connection Request
•
User Name, Password
– username and password used by TR-069 client to access ACS.
NAT Settings
If there is a NAT (network address translation) between the client and ACS, ACS may not be able to establish
the connection to client without specific technologies intended to prevent such situations. These technologies
allow the client to identify its so called public address (NAT address or in other words external address of a
gateway that covers the client). When public address is identified, the client reports it to the server that uses
this public address for establishing connection to the client in the future..
•
NAT Mode
– identifies the method, that will be used by a client for obtaining its public address
information. The following modes are possible:
•
STUN
– use STUN protocol for public NAT address discovery;
•
Manual
– manual mode, when public address is explicit in configuration; in this mode, you should
add a forwarding rule on a device that acts as a NAT for TCP port used by TR-069 client;
•
Off
– NAT is not used
–
this mode is recommended only when the device is directly connected to
ACS without network address translation. In this case public address will match local client
address.
When choosing STUN mode, you should define the following settings:
•
STUN Server Address
– IP address or domain name of STUN server.
•
STUN Server Port
–
UDP port of STUN server (3478, by default).
•
Minimum Keep Alive Period and
Maximum Keep Alive Period
– define the time interval in seconds
for periodic transmission of messages to STUN server in order to identify public address
modification.
For correct ACS operation behind NAT, STUN server minimum polling period should be less than
maximum session time provided by NAT device.
To apply a new configuration and store settings into the flash memory, click
'Apply'
button. To discard
changes, click
'Cancel'
button
.
