Procentec Atlas 101-800110, User Manual, Page: 46 / 58

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21. Firewall settings
Atlas uses the following network ports.
Port number/protocol Description Office interface Factory interface
80/TCP HTTP Used to redirect to HTTPS.
137/UDP NetBIOS To report the hostname to Windows machines.
161/UDP SNMP To report status information
to external devices. To collect topology data
from the devices on the
factory network.
443/TCP HTTPS Used for the web interface.
4840/TCP OPC UA Only used when the OPC UA service is started in Atlas.
5353/UDP MDNS/Avahi To report the hostname to Apple machines.
34964/UDP PROFINET-I&M/RPC Closed Used to collect PROFINET
specific information.
44819/UDP EtherNet/IP Closed Used to find devices
supporting EtherNet/IP.