Inspect IEEE Assignments#
The inspect command performs detailed inspection of IEEE registry assignments and identifiers.
Depending on the registry category, it can display information such as:
organization name and address,
IEEE registry type,
assignment prefix,
address range,
prefix length,
address capacity,
legacy status, and
related allocations belonging to the same organization.
For an overview of the supported IEEE registries, see IEEE Registries.
Basic usage#
MAC registry inspection is the default:
etherlyzer inspect 00:00:0c:12:34:56
Example output#
Organization
Name : Cisco Systems
Full Name : Cisco Systems, Inc
Address
170 WEST TASMAN DRIVE SAN JOSE CA US 95134-1706
Registry
IEEE Type : MA-L [MAC Address Block Large]
Assignment : 00-00-0c
Range : 00-00-0c-00-00-00 - 00-00-0c-ff-ff-ff
Legacy : False
Prefix Bits : 24 bits
Address Bits : 24 bits
Addresses : 16,777,216
For MAC assignments, EtherLyzer also correlates the organization against its other known MAC registry allocations.
Registry categories#
The registry category defaults to mac:
etherlyzer inspect 00:11:22:33:44:55
A registry category can also be selected explicitly:
etherlyzer inspect -t mac 00:11:22:33:44:55
etherlyzer inspect -t protocol 0800
etherlyzer inspect -t identifier <identifier>
The available categories are:
Category |
Used For |
|---|---|
|
MA-L, MA-M, MA-S, and IAB assignments |
|
EtherType protocol identifiers |
|
IEEE Company Identifiers |
Command reference#
usage: etherlyzer inspect [-h] [-t {mac|protocol|identifier}] value
Inspect a single IEEE assignment and display detailed registry metadata,
organization information, address range, and related vendor allocations.
positional arguments:
value IEEE assignment or identifier to inspect.
options:
-h, --help show this help message and exit
-t, --type {mac|protocol|identifier}
IEEE registry category to search (default: mac).