153
SGMP
Low RiskUDP — System & Infrastructure
Port Overview
Port Number
153
Service Name
SGMP
Transport Protocol
UDP
Category
System & Infrastructure
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 153?
SGMP (Simple Gateway Monitoring Protocol) was the predecessor to SNMP. Defined in RFC 1028. Replaced by SNMP.
UDP
System & Infrastructure
Security Considerations
Port 153 (SGMP) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.