Tag Archive
#firewall rules
4 articles tagged with #firewall rules. This page is set to noindex per SEO configuration.
Profinet Protocol
PROFINET
PROFINET Port Numbers Explained: UDP 34962/34963/34964, Ethertype 0x8892, and Firewall Configuration
Complete guide to PROFINET ports. Covers UDP 34962, 34963, 34964, 49152, Ethertype 0x8892 for cyclic I/O, MRP 0x88E3, firewall rules, and Wireshark filters.
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Cybersecurity
IEC-62443
Network Segmentation in Industrial Control Systems (IEC 62443 Explained)
Learn how network segmentation protects SCADA systems using IEC 62443 zones and conduits, security levels, and DMZ architecture best practices.
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IEC 60870-5-104 Protocol
IEC-104
IEC 60870-5-104 Port Numbers Explained: TCP 2404, TLS 19998, and Firewall Configuration
Complete guide to IEC 60870-5-104 port numbers. Covers TCP 2404, TLS port 19998, IANA registration, firewall rules, Wireshark filters, and security best practices
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DNP3 Protocol
DNP3
DNP3 Port Number Explained: TCP/UDP 20000, Secure Port 19999, and Firewall Configuration
Learn about the DNP3 port 20000 — its purpose, configuration, security measures, and best practices for safe SCADA communication in industrial networks.
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