427
SLP
Medium RiskTCP/UDP — System & Infrastructure
Port Overview
Port Number
427
Service Name
SLP
Transport Protocol
TCP/UDP
Category
System & Infrastructure
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 427?
Port 427 is assigned to SLP (Service Location Protocol), used for dynamic service discovery on local networks. Can be abused for amplification attacks.
TCP/UDP
System & Infrastructure
Commonly Used
Security Considerations
Port 427 (SLP) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.