Mind Wide Open CISCO. Cisco Networking Academy® Lab - Converting IPv4 Addresses to Binary Objectives Part 1: Convert IPv4 Addresses from Dotted Decimal to Binary Part 2: Use Bitwise ANDing Operation to Determine Network Addresses Part 3: Apply Network Address Calculations Background / Scenario Every IPV4 address is comprised of two parts: a network portion and a host portion. The network portion of an address is the same for all devices that reside in the same network. The host portion identifies a specific host within a given network. The subnet mask is used to determine the network portion of an IP address. Devices on the same network can communicate directly; devices on different networks require an intermediary Layer 3 device, such as a router, to communicate. To understand the operation of devices on a network, we need to look at addresses the way devices do-in binary notation. To do this, we must convert the dotted decimal form of an IP address and its subnet mask to binary notation. After this has been done, we can use the bitwise ANDing operation to determine the network address. This lab provides instructions on how to determine the network and host portion of IP addresses by converting addresses and subnet masks from dotted decimal to binary, and then using the bitwise ANDing operation. You will then apply this information to identify addresses in the network. Part 1: Convert IPv4 Addresses from Dotted Decimal to Binary In Part 1, you will convert decimal numbers to their binary equivalent. After you have mastered this activity, you will convert IPv4 addresses and subnet masks from dotted decimal to their binary form. Step 1: Convert decimal numbers to their binary equivalent. Fill in the following table by converting the decimal number to an 8-bit binary number. The first number has been completed for your reference. Recall that the eight binary bit values in an octet are based on the powers of 2, and from left to right are 128, 64, 32, 16, 8, 4, 2, and 1. Decimal Binary 192 168 10101000 10 00001010 255 11111111 2 00000001 11000000 Step 2: Convert the IPv4 addresses to their binary equivalent. An IPV4 address can be converted using the same technique you used above. Fill in the table below with the binary equivalent of the addresses provided. To make your answers easier to read, separate the binary octets with a period. @ 2020 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public.
Lab - Converting IPv4 Addresses to Binary Decimal 192.168.10.10 11000000.10101000.00001010.00001010 209.165.200.229 11010001. 10100101.11001000.11100101 172.16.18.183 10101100.00010000.00010010.10110111 10.86.252.17 00001010.01010110.11111100.00010001 255.255.255.128 11111111.11111111.11111111.10000000 255.255.192.0 11111111.11111111.11000000.00000000 Binary Part 2: Use Bitwise ANDing Operation to Determine Network Addresses In Part 2, you will use the bitwise ANDing operation to calculate the network address for the provided host addresses. You will first need to convert an IPV4 decimal address and subnet mask to their binary equivalent. Once you have the binary form of the network address, convert it to its decimal form.