The MAC or physical address is normally represented as 12 hexadecimal characters, grouped in pairs and separated by hyphens (-). Physical addresses on a Windows-based computer are displayed in a format of xx-xx-xx-xx-xx-xx, where each x is a number from 0 to 9 or a letter from A to F. Each of the hex characters in the address can be converted to 4 binary bits, which is what the computer. It also shows MAC addresses of 5 NICs from each company. Thus, this procedure ensures that no two NICs use the same MAC address in the universe. Types of MAC address. There are three types of MAC address; unicast, multicast, and broadcast. Unicast MAC address. Unicast MAC address represents a specific NIC or onboard NIC ports in the network. The MAC address may also be called a Hardware address, Physical Address, Hardware ID or just ID. Regardless of what the address is called, all MAC addresses consist of 12 alphanumeric characters ranging from 0 to 9 and A to F.
MAC Address Validator
How to validate and decode MAC (Media Access Control) addresses?
The form below does the conversion for you (both ways); Start Link-local address with 'fe80::'. Make sure you don't cut-and-paste spaces or tabs. A Media Access Control (MAC) address is a unique numeric identifier used to distinguish a device from others on a network. The address is assigned by the manufacturer, for Ethernet and Wi-Fi cards. Your device therefore is likely to have two MAC addresses.
In order to help your programming or testing tasks, FYIcenter.com has designed this online tool for you to validate and decode any given MAC address.
All you need to do is to enter a MAC address and click the 'Validate' button. Validation result will be displayed in the result area. Manufacturer OUI {Organizationally Unique Identifier}, company name and address are also displayed.
✍: FYIcenter.com
Validation result by FYIcenter.com - MAC Address:
Specified MAC Address: Valid ✔
What is a valid MAC address?
A MAC (Media Access Control) address is a unique identifier assigned to most network adapters or Network Interface Cards (NICs) by the manufacturer for identification, IEEE 802 standards use 48 bites or 6 bytes to represent a MAC address. This format gives 281,474,976,710,656 possible unique MAC addresses.
IEEE 802 standards define 3 commonly used formats to print a MAC address in hexadecimal digits:
- Six groups of two hexadecimal digits separated by hyphens (-), like 01-23-45-67-89-ab
- Six groups of two hexadecimal digits separated by colons (:), like 01:23:45:67:89:ab
- Three groups of four hexadecimal digits separated by dots (.), like 0123.4567.89ab
Other formats used are:
- Without any separator, like 0123456789ab
- With space separator, like 01 23 45 67 89 ab
- In four groups of three digits, like 012:345:678:9ab
What is the structure of MAC address? The following picture shows the internal structure a MAC address:
To generate MAC addresses for testing, use 'Test MAC Address Generator' tool.
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Home > Articles > CompTIA > Network+
␡- Introduction
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This chapter covers the various networking devices used in modern networks with an eye toward passing the Network+ Exam. Sample questions with detailed answers are included to help you practice.
This chapter is from the book Network+ Exam Cram 2 (Exam Cram N10-003), 2nd Edition
This chapter is from the book
This chapter is from the book
Network+ Exam Cram 2 (Exam Cram N10-003), 2nd Edition
Objectives Avid dnxhd codec premiere.
1.6 Identify the purposes, features, and functions of the following network components:
- Hubs
- Switches
- Bridges
- Routers
- Gateways
- Download snow leopard iso for mac. CSU/DSU (Channel Service Unit/Data Service Unit)
- NICs (Network Interface Card)
- ISDN (Integrated Services Digital Network) adapters
- WAPs (Wireless Access Point)
- Modems
- Transceivers (media converters)
- Firewalls
2.1 Identify a MAC (Media Access Control) address and its parts
What you need to know
- Describe how hubs and switches work
- Explain how hubs and switches can be connected to create larger networks
- Describe how bridges, routers, and gateways work
- Describe how routing protocols are used for dynamic routing
- Explain the purpose of other networking components such as Channel Service Unit/Digital Service Unit (CSU/DSU) and gateways
- Describe the purpose and function of network cards
- Describe how to identify a MAC address
- Understand the function of a transceiver
- Describe the purpose of a firewall
Introduction
All but the most basic of networks require devices to provide connectivity and functionality. Understanding how these networking devices operate and identifying the functions they perform are essential skills for any network administrator and requirements for a Network+ candidate.
This chapter introduces commonly used networking devices, and, although it is true that you are not likely to encounter all of the devices mentioned in this chapter on the exam, you can be assured of working with at least some of them.
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