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// Other services

Port 1945: dialogic-elmd

Port 1945 is assigned by IANA to dialogic-elmd (dialogic-elmd).

1945

How dialogic-elmd works

Other services
client:1945dialogic-elmdresponse client:1945dialogic-elmdresponse

The client sends a request to port 1945 and the dialogic-elmd 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 1945 dangerous?

We have no specific security note for port 1945. 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 1945

ServicePortTransportDescriptionReferenceUpdated
dialogic-elmd 1945 TCP, UDP dialogic-elmd - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1945, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1945'      # process listening on 1945
sudo lsof -nP -i :1945

macOS

sudo lsof -nP -i :1945

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1945 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1945
netstat -ano | findstr :1945

From another machine

nmap -p 1945 -sV <host>
sudo nmap -sU -p 1945 <host>
nc -zv <host> 1945

Block it in the firewall

sudo ufw deny 1945/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1945" -Direction Inbound -LocalPort 1945 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1945 used for?

Port 1945 is assigned by IANA to dialogic-elmd (dialogic-elmd).

Is port 1945 TCP or UDP?

Port 1945 is registered for TCP and UDP.

Is it safe to open port 1945?

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 1945 is open?

On Linux run "ss -ltnup 'sport = :1945'", on macOS "lsof -nP -i :1945", and on Windows "netstat -ano | findstr :1945" to see the local process. From another machine, "nmap -p 1945 <host>" shows whether it is reachable.

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