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// Other services

Port 6998: IATP-highPri

Port 6998 is assigned by IANA to iatp-highpri (IATP-highPri).

6998

How iatp-highpri works

Other services
client:6998iatp-highpriresponse client:6998iatp-highpriresponse

The client sends a request to port 6998 and the iatp-highpri 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 6998 dangerous?

We have no specific security note for port 6998. 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 6998

ServicePortTransportDescriptionReferenceUpdated
iatp-highpri 6998 TCP, UDP IATP-highPri - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6998, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6998'      # process listening on 6998
sudo lsof -nP -i :6998

macOS

sudo lsof -nP -i :6998

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6998 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6998
netstat -ano | findstr :6998

From another machine

nmap -p 6998 -sV <host>
sudo nmap -sU -p 6998 <host>
nc -zv <host> 6998

Block it in the firewall

sudo ufw deny 6998/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6998" -Direction Inbound -LocalPort 6998 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6998 used for?

Port 6998 is assigned by IANA to iatp-highpri (IATP-highPri).

Is port 6998 TCP or UDP?

Port 6998 is registered for TCP and UDP.

Is it safe to open port 6998?

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 6998 is open?

On Linux run "ss -ltnup 'sport = :6998'", on macOS "lsof -nP -i :6998", and on Windows "netstat -ano | findstr :6998" to see the local process. From another machine, "nmap -p 6998 <host>" shows whether it is reachable.

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