What it is about
Modems only verify a mobile connection has been established without confirming that data can be actually transmitted. Instances such as maintenance or temporary disruptions may prevent data transfer despite a functional mobile connection. In such scenarios, it becomes necessary to disconnect and reconnect the mobile connection, often requiring a reboot of the cellular router.
Especially in remote locations where consistent local access is not feasible, setting up an automated Ping-Reboot monitoring is crucial. With this, the router sends ping requests to a ping server at regular intervals. In the event that no response is received within a specified time frame, the router classifies this as a disruption and proceeds to initiate a reboot automatically. This guarantees continuous monitoring of data transmission and ensures that the router is automatically restarted upon detecting a fault in data transmission.
Suitable Ping Servers
The cellular router needs to be configured with a ping server that is accessible through the router's SIM card. A commonly used server, such as 8.8.8.8, can be utilised for such pinging purposes.
Below are some suitable mdex ping servers, specifically to use with Wireless Logic & mdex SIM cards or mdex IP services:
|
public-ping.mdex.de |
Public ping server, recommended for all SIM cards with internet access. This ping server is suitable for Wireless Logic SIM cards manged by SIMPro! |
|
ping.mdex.de |
Internal mdex ping server, only reachable from the mdex network when using an mdex SIM card with fixed.IP+ or public.IP. This ping server is not suitable for Wireless Logic SIM cards managed by SIMPro! |
| 172.21.0.1: |
Internal mdex ping server, only reachable from the mdex network when using an mdex OpenVPN service fixed.IP+ or mdex public.IP. This ping server is not suitable for Wireless Logic manged by SIMPro or mdex SIM cards managed by mCOP! |
Enabling mobile data transmission check (ping reboot) in the router
Follow these instructions to setup and enable mobile data transmission monitoring with a Teltonika cellular router or Advantech cellular router:
Teltonika cellular router
This guide is based on firmware version R_00.07.06 and may vary with other firmware versions.
- Login to the cellular router
- In the menu navigate to System > Maintenance > Auto Reboot, click on the Edit button next to Ping/Wget Reboot
- Set the following configurations:
- Enable: Activate (on)
- Interval count: Number of failed attempts before triggering the reboot (recommended: 3)
- Host to ping: Enter the ping server (see list of suitable ping servers above)
- Apply the changes by clicking on Save & Apply.
- The mobile data transmission monitoring is now enabled.
More information for Ping-Reboot settings can be found on the Teltonika Homepage, for example RUT241: Ping/Wget Reboot.
Advantech cellular router
To enable "Check Connection" in an Advantech cellular router, follow these steps:
- Login to the cellular router.
- In the menu navigate to Configuration > Mobile WAN and enter the following settings:
- Check Connection:
- enabled: With this option, ping requests are sent based on the router's routing table.
- enabled + bind: This option ensures the ping always goes through the mobile WAN network interface (SIM card).
- Ping IP Address: Enter the ping server (see list of suitable ping servers above)
- Ping Interval: Ping requests are sent at this interval in seconds (recommended: 300).
- Ping Timeout: The router waits for a response within this time frame in seconds (recommended: 10).
- Check Connection:
- Save the settings by clicking on Apply.
- Mobile data transmission monitoring is now enabled.