CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 6200: LM-X License Manager by X-Formation

Port 6200 is assigned by IANA to lm-x (LM-X License Manager by X-Formation).

6200

How lm-x works

Other services
client:6200lm-xresponse client:6200lm-xresponse

The client sends a request to port 6200 and the lm-x 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 6200 dangerous?

We have no specific security note for port 6200. 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 6200

ServicePortTransportDescriptionReferenceUpdated
lm-x 6200 TCP, UDP LM-X License Manager by X-Formation
Reported: Known Unauthorized Use on port 6200
 - 2006-10

// source: IANA service name and port number registry

03 Check it

Which program uses port 6200, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6200'      # process listening on 6200
sudo lsof -nP -i :6200

macOS

sudo lsof -nP -i :6200

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6200 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6200
netstat -ano | findstr :6200

From another machine

nmap -p 6200 -sV <host>
sudo nmap -sU -p 6200 <host>
nc -zv <host> 6200

Block it in the firewall

sudo ufw deny 6200/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6200" -Direction Inbound -LocalPort 6200 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6200 used for?

Port 6200 is assigned by IANA to lm-x (LM-X License Manager by X-Formation).

Is port 6200 TCP or UDP?

Port 6200 is registered for TCP and UDP.

Is it safe to open port 6200?

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 6200 is open?

On Linux run "ss -ltnup 'sport = :6200'", on macOS "lsof -nP -i :6200", and on Windows "netstat -ano | findstr :6200" to see the local process. From another machine, "nmap -p 6200 <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