# Open Network Ports and Enabled Ports and Services

The following table summarizes open network ports and services:

Protocol | Port Number | Program Name | Enabled by | Notes
--- | --- | --- | --- | ---
TCP | 20 | vsftpd | Enabled by default. | Temporarily open for active FTP connections
TCP | 21 | vsftpd | Enabled by default. | FTP
TCP | 23 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | Telnet
TCP | 80 | nginx | Enabled by default. | HTTP
TCP | 443 | nginx | Enabled by default. | HTTPS
TCP | 2222 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | Ethernet/IP
TCP | 4840 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | OPCUA
TCP | 20023 |  | Enabled by default. | Device Recover
TCP | 32704-32768 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | SLMP
TCP | 44818 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | Ethernet/IP
TCP | 50006 |  | Enabled by default. | Tracing
TCP | 50007 |  | Enabled by default. | Tracing
TCP | 51000-51050 | vsftpd | Enabled by default. | Temporarily open for passive FTP connections
UDP | 161/162 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | PROFINET - SNMP
UDP | 2222 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | Ethernet/IP Implicit
UDP | 1069 |  | Enabled by default. | Device Discovery
UDP | 34964 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | PROFINET
UDP | 44818 |  | Disabled by default. Conditionally enabled by Industrial Ethernet Settings Utility. | Ethernet/IP

Note: The Emulator binds everything to ephemeral ports except UDP 1069 for Device Discovery.