Chapter 3: Operation
98-148232-E To control data connections (PDP contexts) 36
To set up the security with the web interface
If you want to setup the security with the web interface, see the following sections:
• User and administrator passwords for web interface: Passwords on page 77.
• Admin password for AT shell (same as for web interface): Passwords on page 77.
• Password for remote SMS access: To set up remote access with SMS on page 86.
• Trusted phone numbers for SMS control: To set up remote access with SMS on page 86.
•MAC filtering: To manage connected devices (Traffic control) on page 69.
• SIM personalization: Auto SIM PIN validation on page 79 and SIM lock on page 80.
• Disable Reset button: Reset button on page 90.
To control data connections (PDP contexts)
Automatic Context Activation (ACA)
In the web interface you can set up the EXPLORER 540 to automatically establish a data
connection when it is registered on the satellite network. See Automatic Context Activation
(ACA) on page 53. Automatic Context Activation also applies to the “wake-on” actions after
power save mode (see Power-saving on page 40) and by recovery after e.g. loss of power.
If the terminal is in Cellular modem preferred mode or Cellular modem preferred (PRISM)
mode, ACA is mandatory on both the cellular and the BGAN connection, i.e. a data connection
is automatically established on both networks.
Connection watchdog (Link monitoring)
If you are not using the Terminal watchdog function, it is strongly recommended to use the
Connection watchdog function to monitor your locally established IP connection, as it enables
you to test the BGAN connectivity and to keep your PDP context alive.
With this feature activated, the terminal will send out ping commands to up to three servers of
your choice. When a data session is started, the terminal will start sending ping commands to
the Primary IP address the number of times specified. If no response is received, it will send the
same number of ping commands to the Secondary and then Tertiary IP address, if available. If
no response is received from any of the IP addresses, the terminal will eventually restart.
For configuration with the web interface, see Connection watchdog (Link monitoring) on
page 81.
For configuration with SMS command, see WATCHDOG: Get or set watchdog parameters on
page 27.
The Connection watchdog only works when the data connection is started locally by
equipment connected to the EXPLORER 540. Data connections started with the SMS
command ACTIVATE cannot be monitored with the Connection watchdog.
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