Port 18242
iclid · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | iclid |
| Registered | 2012-06-28 |
Frequently asked questions
What is port 18242 used for?
Port 18242 is registered with the IANA for iclid (TCP/UDP). Description: Checkpoint router monitoring; Reserved.
Is port 18242 a well-known port?
No. Port 18242 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 18242 is open?
Locally on Linux with ss -tulpn | grep ':18242\b', on Windows with netstat -ano | findstr :18242. To test a remote host use Test-NetConnection <host> -Port 18242 in PowerShell or nc -zv <host> 18242 on Linux/macOS.
How do I open port 18242 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 18242/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=18242/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 18242" -Direction Inbound -Protocol TCP -LocalPort 18242 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | iclid | Checkpoint router monitoring |
| UDP | – | Reserved |