01Cisco STUN Priority 3tcp · udp · iana-registered · risk 1/10
Cisco STUN serial-tunneling traffic assigned to the priority 3 service port.
port 1992 as Cisco STUN Priority 3 →Port 19922 services
2 entries are registered on port 1992. It is a registered port (1024–49151) — IANA records an assignee, but nothing stops other software from listening here, which is why the number carries more than one entry.
- entries
- 2
- transport
- tcp · udp
- in transit
- 0/2
- worst risk
- 1/10
services registered on this number
2 transports in use
entries encrypted on the wire
2 of 2 iana-registered
Services on this port
| port | service | risk | |||
|---|---|---|---|---|---|
| :1992 | Cisco STUN Priority 3 | TCPUDP | Network Services | safe | 0 |
| :1992 | IPsendmsg | TCPUDP | Network Services | safe | 0 |
02IPsendmsgtcp · udp · iana-registered · risk 1/10
IPsendmsg is an obscure TCP/UDP service assignment with no documented public protocol details.
port 1992 as IPsendmsg →filed underNetwork Services
Which one is on your host
The registry says what 1992 is registered to. What is listening on it right now is decided by the host, and only the host can be asked. Each of these prints the process behind the socket.
- linux
ss -ltnp | grep ':1992\b'- macos
lsof -nP -iTCP:1992 -sTCP:LISTEN- windows
netstat -ano | findstr :1992
On Linux and Windows the process name comes back with the socket; on macOS lsof needs sudo to name a process that isn't yours. Match what it prints against the 2 entries above.
A port number is not a service. Anything may listen on 1992 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.
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