5 Initial operation
© 2021 Interflex Datensysteme GmbH IF-4072 Controller 14
5. Start communication with Open
6. Log in with username fieldservice
7. Specify a password
Details on valid password requirements and how to change a password can be found under
Users and passwords.
Only after entering a password are the network services started and the network connection can
be established.
u Establish network connection
After the power supply has been switched on, the device executes the following actions:
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Boot the operating system
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Start applications
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Connect the devices
When the RUN LED lights up, an SSH connection can be established.
The start-up procedure takes up to 30 seconds.
Leave PuTTY open during the next steps as further entries are required during initial operation.
5.2 Checking and setting network parameters
The netpar -? command lists the call parameters of the netpar command:
fieldservice@IF‑xxx:~ netpar -?
Display or change network parameters (legacy)
Please consider using nmtui or nmcli instead.
Usage: /opt/interflex/bin/netpar [OPTION]
-i show network settings
-x change IP addr., gateway, netmask and port no
-d use default network configuration
-y use DHCP network configuration
-r restart network interface
-h show DHCP configuration
-m change 'SNMPD' options parameters
-w Connecting Wifi profile netpar-wifi
-? print this help screen
Input syntax for commands
Observe the following input syntax for commands:
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Commands are written in lowercase.
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Options are separated from the command by a blank and the minus sign.
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-? lists all possible command options.
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Press the Enter key to confirm command lines and data.
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