SIMPLE BASIC NETWORKING

WHAT IS MAC ADDRESS ?

Media Access Control (MAC) Address is every bit as important as an IP address.

MAC Address is a unique value associated with a network adapteer. MAC address are also known as hardwareaddresses or physical address.

MAC address are 12-digit hexadecimal numbers (48 bits in length).

penulisan MAC addres ada menggunakan 2 tipe format

MM:MM:MM:SS:SS:SS

MM-MM-MM-SS-SS-SS

The first half of MAC address contains the ID number of the adapter manufacturer. The second Half of MAC address represents the serial number assigned to the adapter by the manufacturer.

MAC addresses function at the data link layer (LAYER 2, OSI model)

and IP addressing functions at the network layer (LAYER 3, OSI model).

IP ADDRESSING

IP ADDRESS terdiri dari bilangan biner sepanjang 32 bit yang dibagi atas 4 segmen. tiap segmen terdiri atas 8 bit yang berarti memiliki nilai desimal 0-255.

Untuk mempermudah pembacaan dan penulisan IP ADDRESS biasanya di konfersikan ke dalam bilangan desimal.

secara umum IPv4 dibagi kedalam 3 class

IP Class A

ip address range : 1.0.0.0 s/d 126.255.255.255

subnet mask default  : 255.0.0.0 atau CIDR: /8

IP Class B

ip address range : 128.0.0.0 s/d 191.255.255.255

subnet mask default : 255.255.0.0 atau CIDR : /16

IP Class C

ip address range : 192.0.0.0 s/d 223.255.255.255

subnet mask default : 255.255.255.0 atau CIDR: /24