CyberHunter
Local dataset, no network
// Other services

Port 1828: itm-mcell-u

Port 1828 is assigned by IANA to itm-mcell-u (itm-mcell-u).

1828

How itm-mcell-u works

Other services
client:1828itm-mcell-uresponse client:1828itm-mcell-uresponse

The client sends a request to port 1828 and the itm-mcell-u 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 1828 dangerous?

We have no specific security note for port 1828. 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 1828

ServicePortTransportDescriptionReferenceUpdated
itm-mcell-u 1828 TCP, UDP itm-mcell-u - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1828, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1828'      # process listening on 1828
sudo lsof -nP -i :1828

macOS

sudo lsof -nP -i :1828

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1828 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1828
netstat -ano | findstr :1828

From another machine

nmap -p 1828 -sV <host>
sudo nmap -sU -p 1828 <host>
nc -zv <host> 1828

Block it in the firewall

sudo ufw deny 1828/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1828" -Direction Inbound -LocalPort 1828 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1828 used for?

Port 1828 is assigned by IANA to itm-mcell-u (itm-mcell-u).

Is port 1828 TCP or UDP?

Port 1828 is registered for TCP and UDP.

Is it safe to open port 1828?

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 1828 is open?

On Linux run "ss -ltnup 'sport = :1828'", on macOS "lsof -nP -i :1828", and on Windows "netstat -ano | findstr :1828" to see the local process. From another machine, "nmap -p 1828 <host>" shows whether it is reachable.

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