Port 383HP Data Alarm Manager
HP Data Alarm Manager primarily uses port 383 for managing data alarms, typically within Hewlett-Packard network device environments. It helps administrators monitor and respond to threshold breaches or fault conditions by communicating alarm data between network management tools and HP hardware..
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 11,141
2 transports registered
payload readable on path
registered with iana
caution
rank 377 of 993 · top 38%
Technical Details
what runs on :383HP Data Alarm Manager on port 383 facilitates the communication of alarm status, alerts, and threshold events across HP networking devices and management systems, such as HP OpenView. It allows centralized network monitoring tools to receive timely data about device status, fault conditions, or operational anomalies.
This port supports both TCP and UDP transport protocols, offering flexibility depending on network configuration and requirements. TCP provides reliable, connection-oriented communication that ensures alarm details reach their destination, while UDP supports quicker, connectionless transmission, useful for frequent status updates or broadcast alerts.
Integration with HP's proprietary management platforms allows for automation, logging, and escalation workflows, improving the efficiency of network operations teams. The Data Alarm Manager protocol exposes detailed state information for hardware and environmental parameters, enabling proactive network health management.
Security Information
exposure of :383risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
network services averages 3.9 across 604 ports — this one sits 0.1 above.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
official
registered with iana for this service — scanners fingerprint it by number
reachable over
tcp · udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
Common vulnerabilities on port 383 mainly stem from its exposure on untrusted networks, where attackers might intercept unencrypted alarm data, perform spoofing to inject false alerts, or exploit weaknesses in legacy HP management services. Unauthenticated or poorly configured services can be leveraged for information leakage, denial of service, or lateral movement within enterprise environments.
Recommended security mitigations include:
- Restricting port 383 access to trusted IPs or network segments using firewalls
- Enabling network segmentation to isolate management traffic
- Deploying proper authentication and access controls on HP management interfaces
- Monitoring anomalous traffic patterns targeting port 383
- Where possible, tunneling management sessions through encrypted channels like VPNs, as native communication is unencrypted
- Keeping HP network management software updated to patch known vulnerabilities
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risk mix of the 8 listed
- caution100%
0 of 8 encrypted