This address is manageable and configurable. When you purchase a new NIC (Network Interface Card), or any device which has onboard NICs, it comes with a pre-configured MAC address.A MAC address is 6 bytes (48 bits) long address in the binary numbers. NICs of PC-B and PC-C have the same MAC address 00000ABB28FC.If PC-A sends a frame to the destination MAC address A LAN network does not work unless each device in the LAN network has a unique MAC address.Now let's be back to our main question. No matter what the size of your project, you need to have some sort of project management. With IP multicasting the hardware multicasting MAC address is mapped to an IP Address.

The hexadecimal format uses the For convenience and easier readability, when writing a MAC address in hexadecimal format, extra space or In this example the value is 1 which equals 0x01. The IEEE has reserved the OUI Broadcast MAC address represents all devices in the network. Figure 19-6 shows how a multicast MAC address is calculated from a Layer 3 multicast address.

Project management consists of more than just a large building project and can encompass small projects as well. 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 1 0 . A unique address enables an end device to send and receive data in the network.In the LAN network, a unique address is the combination of two addresses; software address and hardware address.A networking reference model defines the standards, characteristics, definitions, and functionalities of the network. If it happens accidentally, a packet from a different IP multicast application can be identified at Layer 3 and discarded; however, network administrators should be careful when they implement multicast applications so that they can avoid using IP addresses that produce identical MAC addresses.What you need to know about… Project Management Made Easy! The manufacturer also assigns a unique hexadecimal value in the remaining bytes.6 bytes MAC address = 3 bytes OUI number obtained from the IEEE + 3 bytes unique number assigned by the manufacturerMAC addresses of all NICs or onboard NIC devices manufactured by the same manufacturer always start with the same 3-bytes OUI numbers. Before we understand how manufacturers select MAC addresses for NICs, let’s briefly understand why a MAC should be unique in the LAN network.If a LAN network has two or more NICs configured with the same MAC address then that network will not work. A multicast MAC address always starts with the prefix 01-00-5E. The IP protocol uses the term IP address to define the software address.I have already explained IP addresses in the following tutorial.In this tutorial, I will explain the hardware addresses in detail.The hardware address is also known as the data link layer address or layer 2 address or MAC (Media Access Control) address. In an Ethernet switch, each of the three are treated differently. A media access control address (MAC address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. IGMP multicast. In both models, the network layer and data link layer stand on the third and second positions, respectively. Multicast MAC address represents a group of devices (or NICs in Layer 2). Our multicast MAC address is now 01-00-5E-28-23-01 So 192.168.35.1 has a multicast MAC address of 01-00-5E-28-23-01. When a client on the local segment needs to send a multicast message, it will use a Frame with a special MAC address.

periods or colons are added after every two or four digits. The traditional system involved class A, B, C and D IP addresses.

Let’s understand this with an example.Suppose in a network three PCs; PC-A (11000ABB28FC), PC-B (00000ABB28FC) and PC-C (00000ABB28FC) are connected through a switch. MAC addresses are written in the hexadecimal format. This mode is basically the same as multicast mode, except that the switches can automatically build their MAC address tables in this mode. 1. unicast addresses. Unlike the IP address or software address, this address can’t be configured or managed. Unicast addresses represent a single LAN interface. This tutorial explains the MAC (Media Access Control) address in detail.


Our multicast MAC address is now 01-00-5E-28-23-ZZ 4. for any other query (such as adverting opportunity, product advertisement, feedback, The MAC address table for the switch requires static entries that map each port to the NLB Multicast MAC address. Why is it important to be able to distinguish between the 3 types of Ethernet address type? Unless an end device has a unique address, it can’t communicate with other devices in the network.
NIC converts hexadecimal numbers of the MAC address in binary numbers before processing and using it.As mentioned above, you can’t assign MAC address to a NIC or onboard NICs.

Based on network requirements and layout, this address can be configured and assigned to an end device. There are two popular networking models; the OSI Seven Layers model and the TCP/IP model.In both models, the software address and hardware address are defined in the network layer and data link layer, respectively.

For example, the IP address 238.10.24.5 produces exactly the same MAC address, 0x01-00-5E-0A-18-05, as 228.10.24.5. For example, suppose the IEEE assigns an OUI “0000AA” to the xyz company. To use IGMP multicast, the network switches must be capable of IGMP snooping.