addressing the network – ipv4 by dodi heriadi. ip addressing structure describe the dotted decimal...

Addressing the Addressing the Network – IPv4Network – IPv4Addressing the Addressing the Network – IPv4Network – IPv4

by Dodi Heriadiby Dodi Heriadi

IP Addressing Structure

• Describe the dotted decimal structure of a binary IP address and label its parts


• Describe the general role of 8-bit binary in network addressing and convert 8-bit binary to decimal


• Practice converting 8-bit binary to decimal


• Practice converting an IPv4 from Binary to Dotted decimal Notation


• Convert decimal to 8-bit binary


• Practice converting decimal to 8-bit binary

Classify and Define IPv4 Addresses

• Name the three types of addresses in the network and describe the purpose of each type

The address by which we refer to the network

A special address used to senddata to all hosts in the network

The addresses assigned tothe end devices in the network

• Network Prefixes



• Calculating Network, Hosts and Broadcast Addresses• An example 172.16.20.0 /25172.16.20.0 /25 network


• Determine the network, broadcast and host addresses for a given address and prefix combination

Type of Address Enter Full Address in BinaryEnter Full

Address in Decimal

IP Address

Network

Broadcast

First Usable Host

Address

Last Usable HostAddress



Address in Decimal

IP Address 11000000 11111100 00111101 01010000 192.252.61.80

Network 11000000 11111100 00111101 01000000 192.252.61.64

Broadcast 11000000 11111100 00111101 01111111 192.252.61.127

First Usable Host

Address11000000 11111100 00111101 01000001 192.252.61.65

Last Usable HostAddress 11000000 11111100 00111101 01111110 192.252.61.126


• Determine the network, broadcast and host addresses for a given address and prefix combination


Address in Decimal

IP Address

Network

Broadcast

First Usable Host

Address

Last Usable HostAddress


• Name the three types of communication in the Network Layer and describe the characteristics of each type

• Identify the address ranges reserved for these special purposes in the IPv4 protocol


• Define public address and private addressPrivate address


Network Address Translation (NAT)With services to translate private addresses to publicaddresses, hosts on a privately addressed network can haveaccess to resources across the Internet

Public Addresses These addresses are designed to be used in the hosts that

are publicly accessible from the Internet

• Define public address and private address


• Describe the purpose of several special addresses


Classify and Define IPv4 Addresses• Identify the historic method for assigning addresses and the issues associated with the method

• Explain the importance of using a structured process to assign IP addresses to hosts and the implications for choosing private vs. public addresses


• Explain how end user devices can obtain addresses either statically through an administrator or dynamically through DHCP

Assigning Addresses

• Explain which types of addresses should be assigned to devices other than end user devices

Assigning Addresses

Assigning Addresses• Describe the process for requesting IPv4 public

addresses, the role ISPs play in the process, and the role of the regional agencies that manage IP address registries.

• Identify different types of ISPs and their roles in providing Internet connectivity

Assigning Addresses

• Identify several changes made to the IP protocol in IPv6 and describe the motivation for migrating from IPv4 to IPv6.

Assigning Addresses

• Use the subnet mask and ANDing process to extract the network address from the IP address.

The AND Operation:The AND Operation:1 AND 1 = 11 AND 1 = 11 AND 0 = 01 AND 0 = 00 AND 1 = 00 AND 1 = 00 AND 0 = 00 AND 0 = 0

Determine the network portion of the host address and the role of the

subnet mask

• Observe the steps in the ANDing of an IPv4 host address and subnet mask

Determine the network portion of the host address and the role of the

subnet mask

Calculating Addresses

• Given a host IP address and subnet mask, calculate the network address


• Given a host IP address and subnet mask, calculate the network address

• Calculating the Number of Hosts


Basic Subnetting• Use the subnet mask to divide a network into smaller networks and describe the implications of dividing networks for network planners

• Calculate the number of hosts in a network range given an address and subnet mask

Basic Subnetting

Basic SubnettingThis scenario has the following This scenario has the following requirements:requirements:AtlantaHQ 58 host addressesAtlantaHQ 58 host addressesPerthHQ 26 host addressesPerthHQ 26 host addressesSydneyHQ 10 host addressesSydneyHQ 10 host addressesCorpusHQ 10 host addressesCorpusHQ 10 host addressesWAN links 2 host addresses (each)WAN links 2 host addresses (each)

Basic Subnetting

Subnetting a subnet, or using Variable Length Subnet Mask (VLSM) was designed to maximize addressing efficiency.Given address/prefix of 192.168.15.0 /24Given address/prefix of 192.168.15.0 /24

Subnetting a Subnetting a subnet subnet

(using VLSM)(using VLSM)

Subnetting a Subnetting a subnet subnet

(using VLSM)(using VLSM)

Subnetting a subnet (using Subnetting a subnet (using VLSM)VLSM)

• Given address/prefix of 172.16.0.0 /22

500 host

50 host50 host200 host200 host

20 host20 host

WAN3 = 2 hostWA

N1 = 2 host

WAN2 = 2 host



• Given address/prefix of 172.16.0.0 /22

Testing the Network Layer

• Describe the general purpose of the ping command, trace the steps of its operation in a network, and use the ping command to determine if the IP protocol is operational on a local host

• Use ping to verify that a local host can communicate with a gateway across a local area network


• Use ping to verify that a local host can communicate via a gateway to a device in remote network


• Use tracert/traceroute to observe the path between two devices as they communicate and trace the steps of tracert/traceroute's operation


• Describe the role of ICMP in the TCP/IP suite and its impact on the IP protocol


addressing the network – ipv4 by dodi heriadi. ip addressing structure describe the dotted decimal...

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