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Host address

Host address

(also device identifier)

Host address definition

A host address is a device’s individual identifier on a network. It’s like a unique name or number that distinguishes one device from another. For example, if you have a network with several gadgets, they will have different host addresses. This helps devices communicate directly with the intended machine instead of sending information to all devices on the network.

See also: Hostname, Localhost

Host address use cases

  • Device Identification. Host addresses give devices unique names or numbers on a network so that they can talk to each other directly.
  • Data Routing. Host addresses help data find its way to the right device by acting as destination markers.
  • Service Access. Using host addresses, devices can access services like file sharing or printing within the network.
  • Network Security. Host addresses control who can access network resources, keeping unauthorized users out.
  • Network Monitoring. A host address helps spot and fix issues with devices or parts of the network.
  • Quality of Service (QoS). Host addresses prioritize important network traffic, making sure critical applications run smoothly.

Further reading

Ultimate digital security