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Local dataset, no network
// Other services

Port 1815: Manufacturing messaging protocol for factory transmission

Port 1815 is assigned by IANA to mmpft (Manufacturing messaging protocol for factory transmission).

1815

How mmpft works

Other services
client:1815mmpftresponse client:1815mmpftresponse

The client sends a request to port 1815 and the mmpft 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 1815 dangerous?

We have no specific security note for port 1815. 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 1815

ServicePortTransportDescriptionReferenceUpdated
mmpft 1815 TCP, UDP Manufacturing messaging protocol for factory transmission - 2024-06-12

// source: IANA service name and port number registry

03 Check it

Which program uses port 1815, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1815'      # process listening on 1815
sudo lsof -nP -i :1815

macOS

sudo lsof -nP -i :1815

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1815 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1815
netstat -ano | findstr :1815

From another machine

nmap -p 1815 -sV <host>
sudo nmap -sU -p 1815 <host>
nc -zv <host> 1815

Block it in the firewall

sudo ufw deny 1815/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1815" -Direction Inbound -LocalPort 1815 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1815 used for?

Port 1815 is assigned by IANA to mmpft (Manufacturing messaging protocol for factory transmission).

Is port 1815 TCP or UDP?

Port 1815 is registered for TCP and UDP.

Is it safe to open port 1815?

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 1815 is open?

On Linux run "ss -ltnup 'sport = :1815'", on macOS "lsof -nP -i :1815", and on Windows "netstat -ano | findstr :1815" to see the local process. From another machine, "nmap -p 1815 <host>" shows whether it is reachable.

05 Related
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