APPLICATION NOTE
AN0015
PORTAL PLUS COMMUNICATION USING 3G
Page 4 of 8
www.videxuk.com
29/03/2018
KEEP ALIVE
ICMP check is recommended to be active to ensure a reliable, always on connection. Click ‘Network Settings’
and then ‘Cell ICMP Check’
Tick ‘Active’ and then enter two IP addresses for the router to ping. We recommend using Google’s Public
DNS servers because we assume these should be available 24/7. 8.8.8.8 and 8.8.4.4. The default time settings
should be okay to leave as they are.
OTHER CONSIDERATIONS
It is possible to enable the web management page to be accessed over the internet (WAN). If enabled we
highly recommend changing the default credentials (u:admin / p:admin) to stop unauthorized access to your
router settings.
It is recommended to setup MAC or IP filtering to allow access from only authorized devices over the internet.
In this case it would be the public IP (WAN) of the computer communicating with the EWS controller.
The location of the Antenna is probably the most critical consideration and understanding which operators
offer the optimum signal strength in the area. As an initial check we recommend visiting the
Ofcom
website:
and follow the onsite links to their online mobile coverage tool. This tool will advise
on the best coverage for the main network providers and other general queries that you may have about the
service provider.
