Registry Database#

EtherLyzer maintains local copies of supported IEEE Registration Authority datasets.

Inspect the current registry configuration and synchronization state with:

etherlyzer registries

The output includes information such as:

  • registry name,

  • legacy name,

  • category,

  • description,

  • local dataset path,

  • IEEE source URL,

  • prefix size,

  • last retrieval time, and

  • update interval.

Supported registries#

Registry

Category

Purpose

MA-L

MAC

MAC Address Block Large

MA-M

MAC

MAC Address Block Medium

MA-S

MAC

MAC Address Block Small

IAB

MAC

Legacy Individual Address Block

CID

Identifier

IEEE Company Identifier

EtherType

Protocol

Ethernet protocol identifier

For details about assignment sizes, OUIs, legacy IAB assignments, and the different IEEE registry types, see IEEE Registries.

Local data#

Registry datasets are stored locally and used directly for lookups.

This allows EtherLyzer to perform identifier lookups without querying third-party lookup services.

Registry data can be updated with:

etherlyzer sync

See Synchronization for synchronization behavior and configuration.