Port 3181BMC PATROL Agent

BMC PATROL monitoring agents use this port to communicate with PATROL management components.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 6/10
lookups: 0

Technical Details

what runs on :3181

The IANA assignment names the BMC PATROL Agent on both TCP and UDP. In typical deployments, the agent accepts management traffic on TCP port 3181; the PATROL agent's port may be configurable. This is a proprietary agent-management protocol rather than a general-purpose web service, and it is not normally identified by an HTTP or TLS handshake. The registry lists UDP as well, but TCP is the usual transport for agent communication.

Security Information

exposure of :3181

risk score

6/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

network services averages 2.7 across 1,363 ports — this one sits 3.3 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

Keep the agent reachable only from trusted PATROL management systems, not from the public internet. An exposed monitoring agent can reveal host and application details and may provide management functions to authorized clients; use the product's access controls and supported security settings, and keep the agent maintained. Do not assume traffic is encrypted by default.

Record

iana registry entry

port: :3181
service: BMC PATROL Agent
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 6/10risk
category: Network Services System
usage: Port 3181 is the conventional listening port for a BMC PATROL Agent, used by PATROL management components to collect monitoring data and communicate with the agent. It is most likely to be encountered on enterprise servers monitored by a BMC PATROL deployment.
lookups: 0rank 993
added: 2026-09-27
updated: 2026-09-27
references: IANA service name registry — port 3181

Something wrong?

This record is maintained by the engineers who use port 3181. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-27.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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edit this record →back to the registry

Related Ports

all 1,363 in network services →

the 8 most looked-up other ports in network services — 1,363 ports carry that label.

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:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :3181BMC PATROL Agent

Technical Details

Security Information

Related Ports

Port 3181BMC PATROL Agent