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// Other services

Port 5116: EPSON Projecter Image Transfer

Port 5116 is assigned by IANA to emb-proj-cmd (EPSON Projecter Image Transfer).

5116

How emb-proj-cmd works

Other services
client:5116emb-proj-cmdresponse client:5116emb-proj-cmdresponse

The client sends a request to port 5116 and the emb-proj-cmd service answers.

Transport
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 5116 dangerous?

We have no specific security note for port 5116. 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 5116

ServicePortTransportDescriptionReferenceUpdated
emb-proj-cmd 5116 UDP EPSON Projecter Image Transfer - 2008-11-17
-5116-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5116, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5116'      # process listening on 5116
sudo lsof -nP -i :5116

macOS

sudo lsof -nP -i :5116

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5116 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5116
netstat -ano | findstr :5116

From another machine

nmap -p 5116 -sV <host>
sudo nmap -sU -p 5116 <host>
nc -zv <host> 5116

Block it in the firewall

sudo ufw deny 5116/udp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5116" -Direction Inbound -LocalPort 5116 -Protocol UDP -Action Block  # Windows
04 FAQ
What is port 5116 used for?

Port 5116 is assigned by IANA to emb-proj-cmd (EPSON Projecter Image Transfer).

Is port 5116 TCP or UDP?

Port 5116 is registered for UDP.

Is it safe to open port 5116?

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 5116 is open?

On Linux run "ss -ltnup 'sport = :5116'", on macOS "lsof -nP -i :5116", and on Windows "netstat -ano | findstr :5116" to see the local process. From another machine, "nmap -p 5116 <host>" shows whether it is reachable.

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