Port 17224Train Realtime Data Protocol Process Data

UDP port 17224 carries cyclic process-data messages between devices on train control networks using TRDP.

transport: udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as trdp-pd

Technical Details

what runs on :17224

TRDP Process Data uses UDP to carry cyclic data telegrams from publishers to subscribers, typically using unicast or multicast delivery. It is connectionless: publishers send messages periodically, and subscribers use TRDP identifiers and message fields to recognize and validate the data; there is no TCP-style connection handshake. The assignment is for the Process Data service, distinct from TRDP's separate Message Data service. TRDP is specified for railway communication systems, including IEC 61375.

Security Information

exposure of :17224

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.6 across 1,917 ports — this one sits 0.6 below.

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

udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

TRDP is intended for controlled railway networks rather than direct internet exposure. Its process-data traffic is not encrypted by default, and an attacker with network access may be able to observe, spoof, or disrupt messages; the practical impact depends on the application and network protections. Restrict access to trusted train-control segments and use network segmentation and monitoring.

Record

iana registry entry

port: :17224
service: Train Realtime Data Protocol Process Data
transport: UDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services System
usage: This is the IANA-assigned UDP port for TRDP Process Data, used by devices exchanging real-time process values in railway train networks. Engineers are most likely to encounter it on onboard train-control networks, not on the public internet.
lookups: 0rank 993
added: 2026-10-18
updated: 2026-10-18
references: IANA service name registry — port 17224

Something wrong?

This record is maintained by the engineers who use port 17224. 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 2026-10-18.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 1,917 in network services →

the 8 most looked-up other ports in network services — 1,917 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:6543	Jetnet	UDP	Network Services	caution	65.3k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :17224Train Realtime Data Protocol Process Data

Technical Details

Security Information

Related Ports

Port 17224Train Realtime Data Protocol Process Data