FEMS Technical Documentation
1. Internet connection
A permanent internet connection for FEMS is recommended. In principle, offline operation is also possible. In this case, however, the following functions cannot be used:
-
System updates
-
Installation of new FEMS apps
-
Transmission of measurement data to FENECON server for remote access
-
Use of Online Monitoring via the FENECON portal access (e. g. on the go via smartphone)
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Maintenance access for FENECON service employees
-
Use of FEMS apps with third-party services via the internet (e. g. Time-of-use tariffs)
2. Network configuration
In the standard configuration, the FEMS obtains the IP address via a DHCP server (e. g. your router). The network configuration can also be adjusted in Online Monitoring under Settings → Network configuration. You can find more information at https://docs.fenecon.de/de/_/latest/fems/ui/settings.html#_netzwerkkonfiguration [here].
3. Firewall
The following services are active on the FEMS and require an Internet connection to the respective target addresses and ports.
| Service | Destination address(es) | Destination port |
|---|---|---|
DNS |
(IP of the DNS server |
53 (DNS) |
Online Monitoring |
144.76.42.217 (fenecon.de) |
443 (HTTPS) |
Time synchronization |
144.76.42.217 (fenecon.de) |
123 (NTP) |
Operating system package updates |
144.76.42.217 (deb.fenecon.de) |
80 (HTTP) |
Remote maintenance |
168.119.5.99 (remote-service.fenecon.de) |
2222 |
|
If you have problems with any of these steps, please check the port release of the router or contact service@fenecon.de. |