ICMP

Network protocol used for error messages and operational information.

ICMP protocol

Internet Control Message Protocol (ICMP) is a network protocol used to deliver error messages and operational information about IP packets. It’s often associated with the `ping` utility, but serves broader diagnostic purposes like path discovery and troubleshooting network issues.

Pronunciation

/ˈɪs.iː.ɛm.piː/

Etymology

ICMP is an abbreviation of Internet Control Message Protocol.

Explain Like I’m 5

ICMP is like a messenger that helps computers tell each other when something went wrong or share basic information, such as if a computer is reachable.

Fun Facts

The 'ping' command uses ICMP to test network connectivity
Traceroute also relies on ICMP echo requests
Some firewalls block ICMP to enhance security

FAQ

What does ICMP stand for? Internet Control Message Protocol
What is ICMP used for? It's primarily used to send error messages and operational information
Can I use ICMP for other things? No, it's not designed for data transfer

Hypernyms — Broader Categories

Internet protocol suite

Hyponyms — Specific Examples

ping traceroute

Holonyms — Wholes or Groups

Internet protocol suite

Indexes

analytical tool error reporting networking

Built by Tim Jones