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// Other services

Port 2944: Megaco H-248

Port 2944 is assigned by IANA to megaco-h248 (Megaco H-248).

2944

How megaco-h248 works

Other services
client:2944megaco-h248response client:2944megaco-h248response

The client sends a request to port 2944 and the megaco-h248 service answers.

Transport
TCP · UDP · SCTP
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 2944 dangerous?

We have no specific security note for port 2944. 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 2944

ServicePortTransportDescriptionReferenceUpdated
megaco-h248 2944 TCP, UDP, SCTP Megaco H-248 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2944, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2944'      # process listening on 2944
sudo lsof -nP -i :2944

macOS

sudo lsof -nP -i :2944

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2944 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2944
netstat -ano | findstr :2944

From another machine

nmap -p 2944 -sV <host>
sudo nmap -sU -p 2944 <host>
nc -zv <host> 2944

Block it in the firewall

sudo ufw deny 2944/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2944" -Direction Inbound -LocalPort 2944 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2944 used for?

Port 2944 is assigned by IANA to megaco-h248 (Megaco H-248).

Is port 2944 TCP or UDP?

Port 2944 is registered for TCP and UDP and SCTP.

Is it safe to open port 2944?

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 2944 is open?

On Linux run "ss -ltnup 'sport = :2944'", on macOS "lsof -nP -i :2944", and on Windows "netstat -ano | findstr :2944" to see the local process. From another machine, "nmap -p 2944 <host>" shows whether it is reachable.

05 Related
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