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// Other services

Port 3240: Trio Motion Control Port

Port 3240 is assigned by IANA to triomotion (Trio Motion Control Port).

3240

How triomotion works

Other services
client:3240triomotionresponse client:3240triomotionresponse

The client sends a request to port 3240 and the triomotion service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 3240 dangerous?

We have no specific security note for port 3240. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 3240

ServicePortTransportDescriptionReferenceUpdated
triomotion 3240 TCP, UDP Trio Motion Control Port - 2002-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 3240, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3240'      # process listening on 3240
sudo lsof -nP -i :3240

macOS

sudo lsof -nP -i :3240

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3240 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3240
netstat -ano | findstr :3240

From another machine

nmap -p 3240 -sV <host>
sudo nmap -sU -p 3240 <host>
nc -zv <host> 3240

Block it in the firewall

sudo ufw deny 3240/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3240" -Direction Inbound -LocalPort 3240 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3240 used for?

Port 3240 is assigned by IANA to triomotion (Trio Motion Control Port).

Is port 3240 TCP or UDP?

Port 3240 is registered for TCP and UDP.

Is it safe to open port 3240?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 3240 is open?

On Linux run "ss -ltnup 'sport = :3240'", on macOS "lsof -nP -i :3240", and on Windows "netstat -ano | findstr :3240" to see the local process. From another machine, "nmap -p 3240 <host>" shows whether it is reachable.

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