How To: Backup Communication; Background Information - Leica GR30 Online Help Manual

b. or by using the display and buttons: Go to Configuration / Network Config and then select WLAN,
make sure that wireless radio is shown as "enabled".
In the GR25/50 web interface, go to Receiver Setup / Network connections / WLAN.
2
3
Press Create new WLAN profile
Enter a unique name for the new WLAN profile.
4
Enter the SSID for the network to connect to or press
networks. In Network infrastructure select "Infrastructure" mode and the correct authentication and encryption
type as defined for the network to be connected to. Enter the correct network key.
Check if the access point is configured to assign an IP address automatically. If this is the case, make sure
5
Obtain an IP address automatically is activated. If the access point router does not assign IP addresses
automatically, deactivate Obtain an IP address automatically and enter the correct IP settings. Press
save the settings and return to the Network connections overview page.
6
Press Connect to connect to the new WLAN profile.
Enter the receiver's hostname or IP address in a browser window to access the web interface.
7

How to: Backup communication

Background information

To make sure that outages on your primary communication line do not result in data loss or loss of connection to the web interface, a
backup communication line can be configured. The Enable backup communication check box on the Network connections - General
page enables the "dead gateway detection"; meaning it constantly checks if the primary connection line is still working and switches to
the backup communication line if needed and back as soon as the primary communication line is available again.
In most cases Ethernet will be used as default communication line and a mobile internet connection as backup. If available, WLAN can
be used in the same way.
Before you begin
Read the How to set up a mobile internet connection guide to make sure the mobile internet connection is working correctly.
Below step-by-step guide will guide you through a setup using Ethernet as the primary gateway and mobile internet as the backup
communication line.
For the backup communication to work it is important that the device accessing the receiver is not in the
same subnet as the receiver. A routing table will always prefer the "shortest" connection for data
transmission. If the backup communication line leads to an IP address in the same subnet, this will overwrite
the gateway priority configured in Network connections - General and the backup communication line will
always be used when connected.
If the Enable backup communication check box on the Network connections - General page is not enabled,
the secondary gateway will be used when the primary gateway is not available anymore but a switch back to
the primary communication line will not be done.
Step-by-step
Step Description
Connect the receiver to the internet via an Ethernet connection.
1
Set up a mobile internet connection in parallel. Read the How to set up a mobile internet connection guide
2
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to open the New WLAN profile page.
Find wireless network to search for available wireless
to