Ip and mac
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MAC addresses are unique 48-bit identifiers burned into the hardware of network interfaces like NIC cards. They identify devices on a local network and remain the same even if the device is moved. IP addresses are 32-bit or 128-bit identifiers assigned dynamically that identify connections to a network and can change anytime the device reconnects. IP addresses are allocated by an administrator or ISP, while MAC addresses are assigned by hardware manufacturers.
Ip and mac
- 1. Mac Address Address that uniquely defines a hardware interface is called MAC (Media Access Control) Address. MAC address is purchased by the manufacturer, producing interface hardware and assign the MAC addresses sequentially to the interface hardware as they are produced. MAC address is burned into the ROM of Network Interface Card (NIC). NIC is an interface hardware that is used by the computer to become a part of a network. MAC address is a 48-bit hexadecimal address. The format of a MAC address is MM:MM:MM:SS:SS:SS, where MM:MM:MM is a 3-byte address of the manufacturer. On the other hand, SS:SS:SS is a serial number of NIC card. MAC Address of each computer on a network is unique. When you change or replace the NIC card of your computer, your MAC address also gets changed. IP Address The address provided to a connection in a network is called IP (Internet Protocol) address. IP address does not uniquely identify a device on a network but, it specifies a particular connection in a network. IP address is provided by the administrator of the network or by Internet Service Provider (ISP). IPv4 address is 32-bit address whereas IPv6 is 128-bit address. Your IP address will get changed each time you connect to the network as it is dynamically allocated to your device when it participates in the network. IP address for a particular connection in a network can be retrieved by RARP (Reverse Address Resolution Protocol). Class Address Range Class A 1.0.0.1 to 126.255.255.254 Class B 128.1.0.1 to 191.255.255.254 Class C 192.0.1.1 to 223.255.254.254 Class D 224.0.0.0 to 239.255.255.255 Class E 240.0.0.0 to 254.255.255.254