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// Other services

Port 45000: Nuance AutoStore Status Monitoring Protocol (data transfer)

Port 45000 is assigned by IANA to asmp (Nuance AutoStore Status Monitoring Protocol (data transfer)), asmp-mon (Nuance AutoStore Status Monitoring Protocol (device monitoring)).

45000

How asmp works

Other services
client:45000asmpresponse client:45000asmpresponse

The client sends a request to port 45000 and the asmp service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 45000 dangerous?

We have no specific security note for port 45000. 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 45000

ServicePortTransportDescriptionReferenceUpdated
asmp 45000 TCP Nuance AutoStore Status Monitoring Protocol (data transfer) - 2017-04-26
asmp-mon 45000 UDP Nuance AutoStore Status Monitoring Protocol (device monitoring) - 2017-04-26

// source: IANA service name and port number registry

03 Check it

Which program uses port 45000, and is it reachable?

Linux

sudo ss -ltnup 'sport = :45000'      # process listening on 45000
sudo lsof -nP -i :45000

macOS

sudo lsof -nP -i :45000

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 45000 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 45000
netstat -ano | findstr :45000

From another machine

nmap -p 45000 -sV <host>
sudo nmap -sU -p 45000 <host>
nc -zv <host> 45000

Block it in the firewall

sudo ufw deny 45000/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 45000" -Direction Inbound -LocalPort 45000 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 45000 used for?

Port 45000 is assigned by IANA to asmp (Nuance AutoStore Status Monitoring Protocol (data transfer)), asmp-mon (Nuance AutoStore Status Monitoring Protocol (device monitoring)).

Is port 45000 TCP or UDP?

Port 45000 is registered for TCP and UDP.

Is it safe to open port 45000?

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 45000 is open?

On Linux run "ss -ltnup 'sport = :45000'", on macOS "lsof -nP -i :45000", and on Windows "netstat -ano | findstr :45000" to see the local process. From another machine, "nmap -p 45000 <host>" shows whether it is reachable.

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