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Hoval Gateway – Firewall settings

To ensure smooth operation of the Hoval Gateways and Hoval Digital Services, we ask you to open the following ports and IP addresses:

Ports and IP addresses

TCP port 53
TCP port 443
TCP port 8443
TCP port 8883 

UDP port 123

IP für DNS

For Hoval, data protection and security have the highest priority. We 
explicitly point out that you make the above firewall settings at your own 
risk. Hoval assumes no liability for any damages in connection with changed 
firewall settings.

If you have any questions, please contact your IT department or an IT 
specialist of your choice.

Last change: 09.02.2021