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// Other services

Port 4880: IVI High-Speed LAN Instrument Protocol

Port 4880 is assigned by IANA to hislip (IVI High-Speed LAN Instrument Protocol).

4880

How hislip works

Other services
client:4880hislipresponse client:4880hislipresponse

The client sends a request to port 4880 and the hislip service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 4880 dangerous?

We have no specific security note for port 4880. 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 4880

ServicePortTransportDescriptionReferenceUpdated
hislip 4880 TCP IVI High-Speed LAN Instrument Protocol - 2021-05-06
-4880-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 4880, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4880'      # process listening on 4880
sudo lsof -nP -i :4880

macOS

sudo lsof -nP -i :4880

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4880 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4880
netstat -ano | findstr :4880

From another machine

nmap -p 4880 -sV <host>
nc -zv <host> 4880

Block it in the firewall

sudo ufw deny 4880/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4880" -Direction Inbound -LocalPort 4880 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4880 used for?

Port 4880 is assigned by IANA to hislip (IVI High-Speed LAN Instrument Protocol).

Is port 4880 TCP or UDP?

Port 4880 is registered for TCP.

Is it safe to open port 4880?

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 4880 is open?

On Linux run "ss -ltnup 'sport = :4880'", on macOS "lsof -nP -i :4880", and on Windows "netstat -ano | findstr :4880" to see the local process. From another machine, "nmap -p 4880 <host>" shows whether it is reachable.

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