199
SMUX
Low RiskTCP — System & Infrastructure
Port Overview
Port Number
199
Service Name
SMUX
Transport Protocol
TCP
Category
System & Infrastructure
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 199?
SMUX (SNMP Multiplexing Protocol), defined in RFC 1227. Deprecated in favor of AgentX (RFC 2741).
TCP
System & Infrastructure
Security Considerations
Port 199 (SMUX) 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.