Port 4880High-Speed LAN Instrument Protocol (HiSLIP)

HiSLIP carries remote-control commands and measurement data between test software and LAN-connected instruments.

transport: tcp
in transit: cleartext
assignment: official
risk: 7/10
lookups: 0

also known as hislip, IVI High-Speed LAN Instrument Protocol

Technical Details

what runs on :4880

HiSLIP is the IVI Foundation's TCP/IP protocol for controlling test and measurement instruments; its standard listener port is TCP 4880. A client establishes synchronous and asynchronous TCP connections to the instrument, then exchanges framed HiSLIP messages carrying control information and instrument data—often SCPI commands and responses, though HiSLIP is a transport rather than a SCPI-only protocol. The protocol uses message headers and length-delimited payloads, allowing binary data as well as text. The exact commands and capabilities available depend on the instrument.

Security Information

exposure of :4880

risk score

7/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

network services averages 2.6 across 1,597 ports — this one sits 4.4 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

HiSLIP provides remote access to instrument-control functions, so an exposed listener may let a network client issue commands, disrupt measurements, or retrieve instrument data. Traffic is not encrypted by default; restrict access to trusted lab or management networks and use network filtering rather than exposing TCP 4880 to the public internet. Authentication and authorization behavior can vary by instrument.

Record

iana registry entry

port: :4880
service: High-Speed LAN Instrument Protocol (HiSLIP)
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 7/10risk
category: Network Services
usage: A HiSLIP listener is typically built into a laboratory instrument such as an oscilloscope, signal generator, or spectrum analyzer, and is accessed by test software or a VISA library. Engineers commonly encounter it on instrument LANs when connecting to equipment using a HiSLIP resource.
lookups: 0rank 993
added: 2026-10-06
updated: 2026-10-06
references: IANA service name registry — port 4880

Something wrong?

This record is maintained by the engineers who use port 4880. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-06.

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :4880High-Speed LAN Instrument Protocol (HiSLIP)

Technical Details

Security Information

Related Ports

Port 4880High-Speed LAN Instrument Protocol (HiSLIP)