47808
BACnet
High RiskUDP — Other
Port Overview
Port Number
47808
Service Name
BACnet
Transport Protocol
UDP
Category
Other
Security Risk
High
Port Range
Registered (1024-49151)
What is Port 47808?
The standard port for BACnet (Building Automation and Control Network) over IP protocol. Used in building management systems for HVAC, lighting, access control, and fire safety. A critical industrial protocol that should be strictly isolated from public networks.
UDP
Other
Security Considerations
Port 47808 (BACnet) is classified as high risk. This port is a common target for automated scanning and brute-force attacks. If you must expose it, restrict access to known IP addresses.
Recommendation: Use firewall rules to whitelist trusted IPs. Enable rate limiting and intrusion detection.