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// Other services

Port 3193: SpanDataPort

Port 3193 is assigned by IANA to spandataport (SpanDataPort).

3193

How spandataport works

Other services
client:3193spandataportresponse client:3193spandataportresponse

The client sends a request to port 3193 and the spandataport 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 3193 dangerous?

We have no specific security note for port 3193. 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 3193

ServicePortTransportDescriptionReferenceUpdated
spandataport 3193 TCP, UDP SpanDataPort - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3193, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3193'      # process listening on 3193
sudo lsof -nP -i :3193

macOS

sudo lsof -nP -i :3193

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3193 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3193
netstat -ano | findstr :3193

From another machine

nmap -p 3193 -sV <host>
sudo nmap -sU -p 3193 <host>
nc -zv <host> 3193

Block it in the firewall

sudo ufw deny 3193/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3193" -Direction Inbound -LocalPort 3193 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3193 used for?

Port 3193 is assigned by IANA to spandataport (SpanDataPort).

Is port 3193 TCP or UDP?

Port 3193 is registered for TCP and UDP.

Is it safe to open port 3193?

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 3193 is open?

On Linux run "ss -ltnup 'sport = :3193'", on macOS "lsof -nP -i :3193", and on Windows "netstat -ano | findstr :3193" to see the local process. From another machine, "nmap -p 3193 <host>" shows whether it is reachable.

05 Related
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