Port 1998
x25-svc-port · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | x25-svc-port |
Frequently asked questions
What is port 1998 used for?
Port 1998 is registered with the IANA for x25-svc-port (TCP/UDP). Description: cisco X.25 service (XOT).
Is port 1998 a well-known port?
No. Port 1998 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 1998 is open?
Locally on Linux with ss -tulpn | grep ':1998\b', on Windows with netstat -ano | findstr :1998. To test a remote host use Test-NetConnection <host> -Port 1998 in PowerShell or nc -zv <host> 1998 on Linux/macOS.
How do I open port 1998 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 1998/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=1998/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 1998" -Direction Inbound -Protocol TCP -LocalPort 1998 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | x25-svc-port | cisco X.25 service (XOT) |
| UDP | x25-svc-port | cisco X.25 service (XOT) |