whatportis.com
suggest an edit →

Port 9600Omron FINS Communication

Port 9600 is primarily used for Omron FINS (Factory Interface Network Service) communication to interface with Omron Programmable Logic Controllers (PLCs). It allows various industrial devices and software components to communicate seamlessly on a factory floor, facilitating data acquisition, device control, and automation processes using the FINS protocol over UDP..

inNetwork ServicesIoT
transport
udp

single transport

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
4/10

caution

lookups
33,157

rank 32 of 993 · top 3%

Technical Details

what runs on :9600

The Omron FINS (Factory Interface Network Service) protocol provides a standardized method for communication between automation equipment and host systems within factory settings. Operating predominantly over UDP port 9600, FINS enables control, monitoring, and troubleshooting of industrial devices from supervisory controllers and SCADA systems.

FINS abstracts hardware details, allowing software tools and operator stations to exchange commands and data transparently with a variety of Omron PLC models on diverse networks including Ethernet, serial links, or proprietary Omron networks. This abstraction greatly simplifies development and integration of industrial applications, providing consistent communication semantics.

In technical deployment, FINS frames encapsulate message types for memory reads/writes, I/O control, diagnostic queries, and status monitoring. The use of UDP speeds communication due to its connectionless nature, suiting environments where rapid device polling is needed, though it foregoes delivery reliability that higher-layer protocols or application-level retransmission must compensate for.

Security Information

exposure of :9600

risk 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

udp

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

security overview

Common Vulnerabilities:

  • FINS communication is typically unencrypted and unauthenticated, exposing sensitive factory data to interception or manipulation.
  • Attackers leveraging unsecured UDP port 9600 may inject malicious messages, disrupt PLC operations, or launch denial-of-service attacks, potentially impacting factory processes.
  • The absence of built-in access controls in default deployments leaves PLCs vulnerable if network segmentation is inadequate.

Common Mitigations:

  • Place industrial control systems and PLCs on isolated, access-controlled VLANs segmented from corporate or public networks.
  • Employ firewall rules to tightly restrict access to UDP port 9600 only from authorized hosts.
  • Implement secure remote access solutions, incorporating VPNs and jump hosts.
  • Upgrade to devices or firmware supporting encrypted communication or layered security mechanisms.
  • Monitor network traffic for anomalous activity on UDP 9600, enabling intrusion detection systems tuned for industrial protocols.

Related Ports

all 604 in network services →

the 8 most looked-up other ports in network services — 604 ports carry that label.

portservicerisk
:9080Groove RPCcaution
:6543Jetnetcaution
:5938TeamViewercaution
:8291Winbox MikroTik Admincaution
:3233WhiskerControl Protocolcaution
:3268Microsoft Global Catalog (GC)caution
:135Microsoft EPMAPcaution
:3128Tatsoft Default HTTP Proxycaution

risk mix of the 8 listed

  • caution100%

0 of 8 encrypted