CyberHunter
Local dataset, no network
// Other services

Port 34980: EtherCAT Port

Port 34980 is assigned by IANA to ethercat (EtherCAT Port).

34980

How ethercat works

Other services
client:34980ethercatresponse client:34980ethercatresponse

The client sends a request to port 34980 and the ethercat 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 34980 dangerous?

We have no specific security note for port 34980. 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 34980

ServicePortTransportDescriptionReferenceUpdated
ethercat 34980 TCP, UDP EtherCAT Port - 2003-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 34980, and is it reachable?

Linux

sudo ss -ltnup 'sport = :34980'      # process listening on 34980
sudo lsof -nP -i :34980

macOS

sudo lsof -nP -i :34980

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 34980 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 34980
netstat -ano | findstr :34980

From another machine

nmap -p 34980 -sV <host>
sudo nmap -sU -p 34980 <host>
nc -zv <host> 34980

Block it in the firewall

sudo ufw deny 34980/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 34980" -Direction Inbound -LocalPort 34980 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 34980 used for?

Port 34980 is assigned by IANA to ethercat (EtherCAT Port).

Is port 34980 TCP or UDP?

Port 34980 is registered for TCP and UDP.

Is it safe to open port 34980?

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 34980 is open?

On Linux run "ss -ltnup 'sport = :34980'", on macOS "lsof -nP -i :34980", and on Windows "netstat -ano | findstr :34980" to see the local process. From another machine, "nmap -p 34980 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

Latest vulnerability news

All news