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// Other services

Port 6850: ICCRUSHMORE

Port 6850 is assigned by IANA to iccrushmore (ICCRUSHMORE).

6850

How iccrushmore works

Other services
client:6850iccrushmoreresponse client:6850iccrushmoreresponse

The client sends a request to port 6850 and the iccrushmore 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 6850 dangerous?

We have no specific security note for port 6850. 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 6850

ServicePortTransportDescriptionReferenceUpdated
iccrushmore 6850 TCP, UDP ICCRUSHMORE - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6850, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6850'      # process listening on 6850
sudo lsof -nP -i :6850

macOS

sudo lsof -nP -i :6850

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6850 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6850
netstat -ano | findstr :6850

From another machine

nmap -p 6850 -sV <host>
sudo nmap -sU -p 6850 <host>
nc -zv <host> 6850

Block it in the firewall

sudo ufw deny 6850/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6850" -Direction Inbound -LocalPort 6850 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6850 used for?

Port 6850 is assigned by IANA to iccrushmore (ICCRUSHMORE).

Is port 6850 TCP or UDP?

Port 6850 is registered for TCP and UDP.

Is it safe to open port 6850?

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 6850 is open?

On Linux run "ss -ltnup 'sport = :6850'", on macOS "lsof -nP -i :6850", and on Windows "netstat -ano | findstr :6850" to see the local process. From another machine, "nmap -p 6850 <host>" shows whether it is reachable.

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