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// Other services

Port 2834: EVTP

Port 2834 is assigned by IANA to evtp (EVTP).

2834

How evtp works

Other services
client:2834evtpresponse client:2834evtpresponse

The client sends a request to port 2834 and the evtp 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 2834 dangerous?

We have no specific security note for port 2834. 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 2834

ServicePortTransportDescriptionReferenceUpdated
evtp 2834 TCP, UDP EVTP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2834, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2834'      # process listening on 2834
sudo lsof -nP -i :2834

macOS

sudo lsof -nP -i :2834

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2834 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2834
netstat -ano | findstr :2834

From another machine

nmap -p 2834 -sV <host>
sudo nmap -sU -p 2834 <host>
nc -zv <host> 2834

Block it in the firewall

sudo ufw deny 2834/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2834" -Direction Inbound -LocalPort 2834 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2834 used for?

Port 2834 is assigned by IANA to evtp (EVTP).

Is port 2834 TCP or UDP?

Port 2834 is registered for TCP and UDP.

Is it safe to open port 2834?

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 2834 is open?

On Linux run "ss -ltnup 'sport = :2834'", on macOS "lsof -nP -i :2834", and on Windows "netstat -ano | findstr :2834" to see the local process. From another machine, "nmap -p 2834 <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

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