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// Other services

Port 6109: GLOBECAST-ID

Port 6109 is assigned by IANA to globecast-id (GLOBECAST-ID).

6109

How globecast-id works

Other services
client:6109globecast-idresponse client:6109globecast-idresponse

The client sends a request to port 6109 and the globecast-id 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 6109 dangerous?

We have no specific security note for port 6109. 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 6109

ServicePortTransportDescriptionReferenceUpdated
globecast-id 6109 TCP, UDP GLOBECAST-ID - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6109, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6109'      # process listening on 6109
sudo lsof -nP -i :6109

macOS

sudo lsof -nP -i :6109

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6109 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6109
netstat -ano | findstr :6109

From another machine

nmap -p 6109 -sV <host>
sudo nmap -sU -p 6109 <host>
nc -zv <host> 6109

Block it in the firewall

sudo ufw deny 6109/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6109" -Direction Inbound -LocalPort 6109 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6109 used for?

Port 6109 is assigned by IANA to globecast-id (GLOBECAST-ID).

Is port 6109 TCP or UDP?

Port 6109 is registered for TCP and UDP.

Is it safe to open port 6109?

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 6109 is open?

On Linux run "ss -ltnup 'sport = :6109'", on macOS "lsof -nP -i :6109", and on Windows "netstat -ano | findstr :6109" to see the local process. From another machine, "nmap -p 6109 <host>" shows whether it is reachable.

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