Operation Manual
VigorAP 902 User’s Guide 
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with VigorACS SI server. 
Event Code – Use the drop down menu to specify an event to 
perform the test. 
Last Inform Response Time – Display the time that VigorACS 
server made a response while receiving Inform message from 
CPE last time. 
CPE Settings 
Such information is useful for Auto Configuration Server (ACS).
Enable– Check the box to allow the CPE Client to connect with 
Auto Configuration Server. 
SSL(HTTPS) Mode - Check the box to allow the CPE client to 
connect with ACS through SSL. 
On – Choose the interface (LAN-A or LAN-B) for VigorAP 902 
connecting to ACS server. 
Port – Sometimes, port conflict might be occurred. To solve 
such problem, you might change port number for CPE. 
Username/Password – Type the username and password that 
VigorACS can use to access into such CPE. 
DNS Server IP Address – Such field is to specify the IP 
address if a URL is configured with a domain name.
  Primary IP Address –You must specify a DNS server IP 
address here because your ISP should provide you with 
usually more than one DNS Server. If your ISP does not 
provide it, the modem will automatically apply default 
DNS Server IP address: 194.109.6.66 to this field. 
  Secondary IP Address –You can specify secondary DNS 
server IP address here because your ISP often provides you 
more than one DNS Server. If your ISP does not provide it, 
the modem will automatically apply default secondary 
DNS Server IP address: 194.98.0.1 to this field. 
Periodic Inform 
Settings 
The default setting is Enable. Please set interval time or 
schedule time for the AP to send notification to VigorACS 
server. Or click Disable to close the mechanism of notification. 
Interval Time – Type the value for the interval time setting. The 
unit is “second”. 
STUN Settings 
The default is Disable. If you click Enable, please type the 
relational settings listed below: 
Server Address – Type the IP address of the STUN server. 
Server Port – Type the port number of the STUN server. 
Minimum Keep Alive Period – If STUN is enabled, the CPE 
must send binding request to the server for the purpose of 
maintaining the binding in the Gateway. Please type a number as 
the minimum period. The default setting is “60 seconds”. 
Maximum Keep Alive Period – If STUN is enabled, the CPE 
must send binding request to the server for the purpose of 
maintaining the binding in the Gateway. Please type a number as 
the maximum period. A value of “-1” indicates that no 










