[PDF] [PDF] Chapter 8: Subnetting IP Networks





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Ip Addressing and Subnetting Workbook - Instructors Version v1_5

In this example each range has 14 usable addresses in it. The computer must still. AND the IP address against the custom subnet mask to see what the network 



Subnetting an IP Address

Apply the subnet mask to the assigned IP address space to calculate the network address of the new possible subnets the broadcast address for each possible 



Chapter 8: Subnetting IP Networks

Explain how to implement IPv6 address assignments in a business network. Convert IP address and Subnet Mask to Binary (line up vertically like an ...



IPv4 Addressing and Subnetting v1.41

IPv4 will eventually be replaced by IP Version 6. (IPv6) due to a shortage of available IPv4 addresses. IPv6 is covered in great detail in another guide. Page 



How to Calculate Subnets

Address. Borrow 3 bits. S S S H H H H H. # of subnets = 23 = 8. Subnet mask = 3 bits = 128 + 64 + 32 = 224. Range of hosts = 25 = 32. Range. Useable Range.



Understanding IP Addressing: Everything you ever wanted to know

Subnetting. 7. Variable Length Subnet Masks (VLSM). 18. Classless Inter-Domain Routing (CIDR). 31. New Solutions for Scaling the Internet Address Space.



Networking Basics

02 Oct2017 Subnet Addressing and Masks(Google search for “subnet mask tutorial”: ... (10)Mac Addresses and IP Addresses. (15)The “3 GOLDEN PARAMETERS”.



Computer Network - IP Address & Subnetting

02 May2016 Computer Network - IP Address & Subnetting. Rajesh Kumar



IP Addressing

IP Addresses. • Structure of an IP address. • Subnetting. • CIDR prefixes vs. old classful IP addresses. • IP Version 6 addresses 



Lecture 10. Subnetting & Supernetting

?Host IP address: 159.100.9.18. ?Class B - network mask: 255.255.0.0. ?Subnet Mask. ? Longer than natural class mask; Length set by administrator.



[PDF] Subnetting an IP Address - cloudfrontnet

Apply the subnet mask to the assigned IP address space to calculate the network address of the new possible subnets the broadcast address for each possible 



[PDF] IPv4 Addressing and Subnetting Workbook - Student Version - v21pdf

Every IP address must be accompanied by a subnet mask By now you should be able to look at an IP address and tell what class it is



[PDF] IPv4 Addressing and Subnetting - Router Alley

An IP address is most often represented in decimal in the following format: 158 80 164 3 An IP address is comprised of four octets separated by periods:



(PDF) Computer Network -IP Address & Subnetting - Academiaedu

By using subnetting one single Class A IP address can be used to have smaller sub- networks which provides better network management capabilities 1 Class A 



[PDF] Chapter 8: Subnetting IP Networks

8 1 Subnetting an IPv4 Network • Implement an IPv4 addressing scheme to enable end-to-end connectivity in a small to medium-sized business network



[PDF] Understanding IP Addressing: Everything you ever wanted to know

Subnetting overcame the registered number issue by assigning each organization one (or at most a few) network numbers from the IPv4 address space The 



[PDF] IP Address and Subnetting Guide - Allied Telesis

The maximum number of hosts is achieved by using the default subnet mask for each class (i e by having only one subnet) CLASS NO OF ADDRESSES Class A 224



IP Addressing and Subnetting Tutorial for Beginners in PDF

The "IP Addressing and Subnetting" PDF ebook tutorial is the perfect resource for anyone looking to learn the fundamentals of IP addressing and subnetting



[PDF] Adressage-IP-Subnettingpdf - OpenSpaceCourse

Dans un premier temps nous allons traiter l'adressage IP dans la version IPv4 Une adresse IPv4 est composée de 32 bits ou 4 octets (4 x 8 = 32) Chaque octet 



[PDF] IP Addressing

Each part of the organization is allocated a range of IP addresses (subnets or subnetworks) • Addresses in each subnet can be administered locally

  • What is IP address and subnet address?

    IP Address: A logical numeric address that is assigned to every single computer, printer, switch, router or any other device that is part of a TCP/IP-based network. Subnet: A separate and identifiable portion of an organization's network, typically arranged on one floor, building or geographical location.

  • What is IP address in computer network PDF?

    An Internet Protocol (IP) address is a numerical label that is assigned to devices participating in a computer network, that uses the Internet Protocol for communication between its nodes. An IP address serves two principal functions: 1- host or network interface identification 2- location addressing.

  • How to calculate subnet from IP address?

    IPv4 addresses are 32 bits made up of four octets of 8 bits each. To calculate the subnet mask, convert an IP address to binary, perform the calculation and then convert back to the IPv4 decimal number representation known as a dotted quad. The same subnetting procedure works for IPv6 addresses.
  • A class C network would have a subnet mask of 255.255. 255.0 which means that 24 bits are used for the network. In CIDR notation this is designated by a /24 following the IP address.

Chapter 8:

Subnetting IP Networks

CCNA Routing and Switching

Introduction to Networks v6.0

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ƒ8.1 Subnetting an IPv4 Network

Implement an IPv4 addressing scheme to enable end-to-end connectivity in a small to medium-sized business network. Explain how subnetting segments a network to enable better communication. Explain how to calculate IPv4 subnets for a /24 prefix. Explain how to calculate IPv4 subnets for a /16 and /8 prefix. Given a set of requirements for subnetting, implement an IPv4 addressing scheme. Explain how to create a flexible addressing scheme using variable length subnet masking (VLSM).

ƒ8.2 Addressing Schemes

Given a set of requirements, implement a VLSM addressing scheme to provide connectivity to end users in a small to medium-sized network.

Implement a VLSM addressing scheme.

Chapter 8 - Sections & Objectives

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ƒ8.3 Address Schemes

Explain design considerations for implementing IPv6 in a business network. Explain how to implement IPv6 address assignments in a business network.

Chapter 8 - Sections & Objectives (Cont.)

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8.1 Subnetting an IPv4

Network

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ƒDevices use broadcasts in an Ethernet LAN to locate: Other devices - Address Resolution Protocol (ARP) which sends Layer 2 broadcasts to a known IPv4 address on the local network to discover the associated MAC address. Services Dynamic Host Configuration Protocol (DHCP) which sends broadcasts on the local network to locate a DHCP server. ƒSwitches propagate broadcasts out all interfaces except the interface on which it was received.

Network Segmentation

Broadcast Domains

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ƒHosts can generate excessive broadcasts and negatively affect the network. Slow network operations due to the significant amount of traffic it can cause. Slow device operations because a device must accept and process each broadcast packet. ƒSolution: Reduce the size of the network to create smaller broadcast domains. These smaller network spaces are called subnets.

Network Segmentation

Problems with Large Broadcast Domains

Broadcast in

LAN 1 contained in

1 subnet

Broadcast in

LAN 2 contained in

1 subnet

One

Broadcast

Domain

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ƒReduces overall network traffic and improves network performance. ƒEnables an administrator to implement security policies such as which subnets are allowed or not allowed to communicate together.

Network Segmentation

Reasons for Subnetting

Subnetting by Location

Communicating between

Networks

Subnetting by Device Type

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Subnetting an IPv4 Network

Octet Boundaries

ƒPrefix length and the subnet mask are different ways of identifying the network portion of an address. ƒSubnets are created by borrowing host bits for network bits. ƒMore host bits borrowed, the more subnets that can be defined.

Networks

are most easily subnetted at the octet boundary of /8, /16, and /24

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Subnetting an IPv4 Network

Subnetting on the Octet Boundary

ƒSubnetting Network 10.x.0.0/16

ƒDefine up to 256 subnets with each subnet capable of connecting 65,534 hosts.

ƒFirst two octets identify the network portion while the last two octets are for host IP addresses.

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Subnetting an IPv4 Network

Subnetting on the Octet Boundary (Cont.)

ƒSubnetting Network 10.x.x.0/24

ƒDefine 65,536 subnets each capable of connecting 254 hosts. ƒ/24 boundary is very popular in subnetting because of number of hosts.

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Subnetting an IPv4 Network

Classless Subnetting

Subnets can borrow bits from any host bit position to create other masks.

Subnetting a /24 Network

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Subnetting an IPv4 Network

Video Demonstration The Subnet Mask

Subnetting in Binary

ƒANDING

Convert IP address and Subnet Mask to Binary (line up vertically like an addition problem) Logically AND (1 and 1 = 1, all other combinations = 0)

Result is network address for original IP address

ƒClassful Subnetting

Class A /8 255.0.0.0

Class B /16 255.255.0.0

Class C /24 255.255.255.0

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Subnetting an IPv4 Network

Video Demonstration The Subnet Mask (Cont.)

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Subnetting an IPv4 Network

Video Demonstration Subnetting with the Magic Number ƒMagic number technique used to calculate subnets ƒMagic number is simply the place value of the last one in the subnet mask ƒ/25 11111111.11111111.11111111.10000000 magic number = 128 ƒ/26 11111111.11111111.11111111.11000000 magic number = 64 ƒ/27 11111111.11111111.11111111.11100000 magic number = 32

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Subnetting an IPv4 Network

Video Demonstration Subnetting with the Magic Number (Cont.)

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Subnetting an IPv4 Network

Video Demonstration Subnetting with the Magic Number (Cont.)

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Subnetting an IPv4 Network

Classless Subnetting Example

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Subnetting an IPv4 Network

Creating 2 Subnets

ƒ/25 Subnetting Topology

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Subnetting an IPv4 Network

Video Demonstration Creating Two Equal-sized Subnets (/25)

Create 2 Equal-sized Subnets from 192.168.1.0 /24

ƒSubnet Mask - 11111111.11111111.11111111.10000000

ƒMagic Number = 128

ƒ192.168.1.0 /25 (start at 0)

ƒ192.168.1.128 /25 (Add 128)

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Calculate Number of

Subnets Formula

Subnetting an IPv4 Network

Subnetting Formulas

Subnetting a /24 Network

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Calculate Number of

Hosts Formula

Subnetting an IPv4 Network

Subnetting Formulas (Cont.)

Calculating the Number of Hosts

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Subnetting an IPv4 Network

Creating 4 Subnets

ƒ/26 Subnetting Topology

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Subnetting an IPv4 Network

Creating 4 Subnets (Cont.)

ƒ/26 Subnetting Topology

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Subnetting an IPv4 Network

Creating 4 Subnets (Cont.)

ƒ/26 Subnetting Topology

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Subnetting an IPv4 Network

Video Demonstration Creating Four Equal-sized Subnets (/26)

Create 4 Equal-sized Subnets from 192.168.1.0 /24

ƒSubnet Mask in Binary 11111111.11111111.11111111.11000000

ƒ2^2 = 4 Subnets

ƒMagic Number = 64

ƒ192.168.1.0 /26

ƒ192.168.1.64 /26

ƒ192.168.1.128 /26

ƒ192.168.1.192 /26

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Subnetting an IPv4 Network

Video Demonstration Creating Eight Equal-sized Subnets (/27)

Create 8 Equal-sized Subnets from 192.168.1.0 /24

ƒBorrow 3 bits 11111111.11111111.11111111.11100000

ƒMagic Number = 32

ƒ192.168.1.0 /27 (Start at 0)

ƒ192.168.1.32 /27 (Add 32 to previous network)

ƒ192.168.1.64 /27 (Add 32)

ƒ192.168.1.96 /27 (Add 32)

ƒ192.168.1.128 /27 (Add 32)

ƒ192.168.1.160 /27 (Add 32)

ƒ192.168.1.192 /27 (Add 32)

ƒ192.168.1.224 /27 (Add 32)

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Subnetting a /16 and /8 Prefix

Creating Subnets with a /16 prefix

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Subnetting a /16 and /8 Prefix

Creating 100 Subnets with a /16 prefix

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Subnetting a /16 and /8 Prefix

Calculating the Hosts

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ƒAn enterprise network requires 100 equal-sized subnets starting from 172.16.0.0/16

New Subnet Mask

11111111.11111111.11111110.00000000

2^7 = 128 Subnets

2^9 = 512 hosts per subnet

Magic Number = 2

172.16.0.0 /23

172.16.2.0 /23

172.16.4.0 /23

172.16.6.0 /23

172.16.254.0 /23

Subnetting a /16 and /8 Prefix

Video Demonstration Creating One Hundred Equal-sized Subnets

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Subnetting a /16 and /8 Prefix

Creating 1000 Subnets with a /8 Network

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Subnetting a /16 and /8 Prefix

Creating 1000 Subnets with a /8 Network (Cont.)

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