2 entries are registered on port 6101. 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.
services registered on this number
2 transports in use
entries encrypted on the wire
1 of 2 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :6101 | Backup Exec Browser | TCP | File Transfer | caution | 15.2k |
| :6101 | SynchroNet-rtc | TCPUDP | — | safe | 0 |
Port 6101 is primarily used by the Backup Exec Agent Browser service, which facilitates communication and discovery of Backup Exec agents on a network. It assists in managing backup operations across multiple systems by enabling the central Backup Exec server to locate, enumerate, and coordinate backup agents efficiently.
port 6101 as Backup Exec Browser →TCP/UDP assignment for SynchroNet-rtc; public documentation and evidence of common deployments are scarce.
port 6101 as SynchroNet-rtc →The registry says what 6101 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.
ss -ltnp | grep ':6101\b'lsof -nP -iTCP:6101 -sTCP:LISTENnetstat -ano | findstr :6101On 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 6101 — 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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