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IMPORTANT
SNS 3.x versions have reached End of Maintenance since July 1st, 2024.
We recommend that you update your SNS firewalls to a version with maintenance to guarantee the protection of your infrastructure.

# General remarks on configuring modems

The firewall automatically negotiates the opening of a line and reinitializes the connection in the event of an interruption. In the event the connection is impossible (problem with the line), the firewall will raise an alarm.