Ppt on ip address classes ranges

IP Addressing & Subnetting. IP Address IP Classes A,B,C,D,E All IP addresses are composed of two parts : zNetwork (or prefix) zHost (or Node) IP versions.

you needs only 1000 IP addresses. z64534 IP addresses get wasted. zFor this reason, the Internet was, until the arrival of CIDR, running out of address space much more quickly than necessary. CLASSFUL ADDRESSING Classful IP Addressing zOnly pass the Network address and not pass subnet mask zi;e; 10.0.0.0 zExample: RIP v1, IGRP zIt follow the IP classes (A,B,C,E,F) zAll range of IPs have the same of/


Objective 1.Understand Network 2.Understand IP Addressing (IPv4 and IPv6) 3.Understand Subnetting 4.Examples 5.IP addressing and Vlan’s in TIFR 6.TIFR.

range for a Class B network: 10000000 = 128 10111111 = 191 IPv4 Addressing (Cont.) Network Address Range: Class C For Class C networks the first 2 bits of the first byte as always turned on but the third bit can never be on. Here is the range of Class C network: 11000000 = 192 11011111 = 223 IPv4 Addressing (Cont.) Network Address Range: Class D 224-239 Network Address Range: Class E 240-255 IPv4 Addressing (Cont.) Private IP addresses: Class Reserved Address Space Class/


TCP/IP Protocol Suite 1 Objectives Upon completion you will be able to: IP Addresses: Classful Addressing Understand IPv4 addresses and classes Identify.

only one block in this class. Note: TCP/IP Protocol Suite 30 Class E addresses are reserved for future purposes; most of the block is wasted. Note: TCP/IP Protocol Suite 31 In classful addressing, the network address (the first address in the block) is the one that is assigned to the organization. The range of addresses can automatically be inferred from the network address. Note: TCP/IP Protocol Suite 32 Given the/


© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 Addressing The Network – IPv4 Network Fundamentals – Chapter 6.

, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 25 Legacy IPv4 Addressing  Historically, RFC1700 grouped the unicast ranges into specific sizes called class A, class B, class C, class D (multicast), and class E (experimental) addresses.  Class A Blocks –A class A address block was designed to support extremely large networks with more than 16 million host addresses. –Class A used a fixed /8 prefix with the first octet to indicate the/


Network Layer/IP Protocols 1. Outline IP Datagram (IPv4) NAT Connection less and connection oriented service 2.

There are no leading zeroes in dotted-decimal notation (045). Example 3 (continued) Find the error, if any, in the following IP address: 75.45.301.14 Solution In dotted-decimal notation, each number is less than or equal to 255; 301 is outside this range. CLASSFUL ADDRESSING Finding the class in binary notation 2 31 2 30 2 29 2 28 Example 6 Find the/


Copyright 2009 Kenneth M. Chipps Ph.D. Network Addressing Last Update

Class D Address Copyright 2009 Kenneth M. Chipps Ph.D. www.chipps.com 41 Class E Address Reason For Address Classes The reason address classes were invented was because we were running out of network addresses as 256 proved to be way too few The invention of address classes is the first time addresses/ M. Chipps Ph.D. www.chipps.com 80 IP Address Planning Copyright 2007-2009 Kenneth M. Chipps Ph.D. www.chipps.com 81 What Range to Use What address range should be used Here is a good approach as suggested/


IP Addresses: Classful Addressing

3 (continued) Solution Find the error in the following IP Address 75.45.301.14 Solution In decimal notation each number <= 255 301 is out of the range Change the following binary IP address Example 4 Change the following binary IP address Hexadecimal notation 10000001 00001011 00001011 11101111 Solution 0X810B0BEF or 810B0BEF16 CLASSFUL ADDRESSING In classful addressing the address space is divided into 5 classes: A, B, C, D, and E. Finding the/


IP Addresses: Classful Addressing IP Addresses. CONTENTS INTRODUCTION CLASSFUL ADDRESSING Different Network Classes Subnetting Classless Addressing Supernetting.

is out of the range Example 4 Solution Change the following binary IP address Hexadecimal notation 10000001 00001011 00001011 11101111 0X810B0BEF or 810B0BEF16 CLASSFUL ADDRESSING Figure 4-2 Occupation of the address space In classful addressing the address space is divided into 5 classes: A, B, C, D, and E. Figure 4-3 Finding the class in binary notation Figure 4-4 Finding the address class A Show that Class A has 2 31/


Video over IP – Get the Picture!

223.255.255.0 D 224.0.0.0 239.255.255.255 E 240.0.0.0 247.255.255.255 Multicast Address Range Video over IP Training IP Addressing Classes A Subnet (short for Subnetwork) is a range of IP addresses within the overall address space assigned to an organization Created to allow Classless Inter-Domain Routing (CIDR) Subnet masks are also represented by the dotted decimal format/


The TCP/IP Protocol.

, B, C are the primary classes. The IP addresses of computers and routers belong to these classes. Class D is used for multicasting. When a packet is sent to an IP multicast address, all the computers sharing this address will receive this packet. Class E addresses are considered experimental and are not used The Classful Addressing Scheme The first decimal value defines the class of the IP address as follows: IP Address Classes & Default Subnet Masks Each packet/


IP Addressing Part 1 2006.

different networks or subnets need to communicate. What are some example Host IP addresses? Host Addresses Network Addresses include a range of HOST IP addresses For every network (or subnet) two address cannot be used for HOST IP addresses: Network Address – The address that represents the network. Broadcast Address – The address used to communicate with all devices on the network. Addressing Hosts Network Network Host Host 172 16 172 16 172 16 1 172 Given/


Addressing The Network – IPv4

this reason, an IPv4 network is also referred to as a broadcast domain. These packets use a destination IP address 255.255.255.255. Use graphic 1.1.1.1 Use graphic 1.1.1.3 Multicast Traffic Multicast/ Addressing Historically, RFC1700 grouped the unicast ranges into specific sizes called class A, class B, class C, class D (multicast), and class E (experimental) addresses. Class A Blocks A class A address block was designed to support extremely large networks with more than 16 million host addresses. Class A/


TCP/IP Protocol Suite1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. IPv4 Addresses.

Example 5.5 TCP/IP Protocol Suite14 The first address in a range of addresses is 14.11.45.96. If the number of addresses in the range is 32, what is the last address? Solution We convert the number of addresses minus 1 to base 256/ B, hay C. Note TCP/IP Protocol Suite40 Figure 5.14 Two-level addressing in classful addressing TCP/IP Protocol Suite41 Example Example 5.12 TCP/IP Protocol Suite42 Figure 5.15 Information extraction in classful addressing TCP/IP Protocol Suite43 An address in a block is given as /


MikroTik RouterOS Training Class

and connect again using IP address MAC-address should only be used when there is no IP access 3131 Laptop Router Diagram Class AP Your Laptop Your Router 192.168.X.1 3232 Router Internet Class AP Your Laptop /Local address - Server address Remote Address - Client address 275275275 PPPoE Important, PPPoE server runs on the interface PPPoE interface can be without IP address configured For security, leave PPPoE interface without IP address configuration 276276276 Pools Pool defines the range of IP addresses /


Network+ Guide to Networks 5th Edition

Networks, 5th Edition APIPA (cont’d.) APIPA Disadvantage Assigns computer’s network adapter IP address from the pool Assigns subnet default Class B network 255.255.0.0 Part of operating system No need to register; check with central authority Disadvantage Computer only communicates with other nodes using addresses in APIPA range Network+ Guide to Networks, 5th Edition APIPA (cont’d.) APIPA suitable use APIPA/


Chapter 8 Communication Networks and Services The TCP/IP Architecture The Internet Protocol IPv6 Transport Layer Protocols Internet Routing Protocols Multicast.

11 1 11 1 1 netid broadcast on distant network Internet address used to refer to network has hostid set to all 0s Private IP Addresses Specific ranges of IP addresses set aside for use in private networks (RFC 1918) Use restricted/ IP addresses were being exhausted IP routing tables were growing very large IP Address Exhaustion Class A, B, and C address structure inefficient Class B too large for most organizations, but future proof Class C too small Rate of class B allocation implied exhaustion by 1994 IP /


CSE401N:Computer Networks Lecture 11+12+13 The Internet Protocol(IP) IPv4 & IPv6 CIDR, Subnet & NAT DHCP,ARP.

of IP addresses for private, internal use. 2. Addresses that fall in these ranges are not routed on the Internet backbone. Internet router immediately discard private addresses. 3. Connecting a network using private addresses to the Internet requires translation of the private addresses to public addresses using Network Address Translation (NAT). 6/3/2015 4a-17 IP addressing: CIDR r Classful addressing: m inefficient use of address space, address space exhaustion m e.g., class B/


Guide To TCP/IP, Second Edition1 Chapter 2 IP Addressing And Related Topics.

Class A, B, and C IP address ranges, the IETF has reserved private IP addresses or address ranges Guide To TCP/IP, Second Edition37 Chapter Summary (cont.) Any organization may use these private IP addresses without charge and without obtaining prior permission, but private IP addresses may not be routed across the public Internet Another important job for Network Address Translation software, in fact, is to map a range of private IP addresses to a single public IP address/


Chapter 4: Network Layer

is? Before 1993: The network prefix is implicitly defined (see class-based addressing) or After 1993: The network prefix is indicated by a netmask. network prefix host number Network Layer Dotted Decimal Notation IP addresses are written in a so-called dotted decimal notation Each byte is identified by a decimal number in the range [0..255]: Example: 10000000 10001111 10001001 10010000 1st Byte = 128/


Chapter 6 Addressing The Network – IPv4

addresses in their configurations but will not appear on the Internet Legacy IPv4 Addressing- Classes Address ranges used to be grouped into specific sizes: class A, class B, class C, class D (multicast), and class E (experimental) addresses. Known as _______________________________ Defined _________________________ as well as _____________________________________ Classes – cont… Class A Blocks Class/subnet and host address fields in IP addresses. Step 5 Determine the ranges of host addresses for each subnet/


MSc WLAN, IP/TCP and COMM NETWORK Topics

Ultra Wide Band High speed wireless personal area network Wi-Fi – Wireless fidelity Wireless technology for indoor environment (WLANS) broader range that WPANs WiMAX – Worldwide Interoperability for Microwave Access Wireless Metropolitan Area Networks (WMANs) For outdoor coverage in LOS and NLOS/for IEEE 802.x, TCP/IP and ISO/OSI Describe the OSI and TCP/IP model Explain each feature of the IP datagram Explain the Internet classes and give an example of how to design an IP address for a network Explain the /


IP Addressing An IP address is 32-bit long. It is usually written as four decimal numbers separated by dots (periods) (dotted decimal notation) In hex,

first few bits of an address, IP software can quickly determine the address class, and therefore its structure. IP Addressing Note: For Class A: Have a first dotted decimal number in the range 1-126 For Class B: Have a first dotted decimal number in the range 128-191 For Class C: Have a first dotted decimal number in the range 192-223 IP Addressing There are five forms of IP addresses: Class A :126 networks, each/


CSE452:Computer Networks

sets aside three blocks of IP addresses for private, internal use. Addresses that fall in these ranges are not routed on the Internet backbone. Internet router immediately discard private addresses. Connecting a network using private addresses to the Internet requires translation of the private addresses to public addresses using Network Address Translation (NAT). 4/17/2017 IP addressing: CIDR Classful addressing: inefficient use of address space, address space exhaustion e.g., class B net allocated enough/


CSCI 547 Network Layer4-1 Chapter 4 Network Layer Read the paper (IP Addressing) US/501302.pdf#search=%22understanding%20ip%20a.

More Auto- configuration Accommodates QOS When? interim solutions CSCI 547 Network Layer4-56 IP Addressing: Classful or Classless r Older IP addressing (and routing) called “Classful IP addressing” which fixes the size of a block to one of classes (A, B, C, D, E) r Out of 5 classes, only 3 classes are assignable to computers as IP addresses—only 3 sizes to fit all organizations of the world? r More elastic (size/


1 TCP/IP Internetworking (Part 2) (February 9, 2015) © Abdou Illia – Spring 2015.

.x to 223.255.255.x ClassAddress range 0xxx 10xx 110x Leftmost bits 8 bits 16 bits 24 bits Network Part Length Classful IP Addressing Classless IP Addressing (since 1993) Most networks too big for "class C“. Therefore received a "class B" set of addresses instead. With the rapid growth of the Internet, there is a shortage of class B addresses Classful IP addressing is replaced by Classless IP addressing e.g., instead of a full/


Chapter 21 IP Addressing “If we all did the things we are capable of doing, we would literally astound ourselves” - Thomas Alva Edison, 1847-1931.

to form a subnetwork ID Chapter 2 37 Summary Within the Class A, B, and C IP address ranges, the IETF has reserved private IP address ranges With CIDR, Supernetting is possible. Supernetting allows borrowing bits from the network portion (opposite of subnetting) to be used as host addresses, to form a “Supernet” by combining contiguous Class C addresses Chapter 2 38 References RFC 1878, Variable Length Subnet Table For/


1 Topic 6: Network Layer - Chapter 5 : The Internet: Addressing & Services Business Data Communications, 4e.

223 1/16 240 255 Class C Class D Class E Class BClass A Ranges of the first byte for different classes: Class A: 0xxxxxxx Class B: 10xxxxxx.xxxxxxxx Class C: 110xxxxx.xxxxxxxx.xxxxxxxx Class D: 1110xxxx.xxxxxxxx.xxxxxxxx Class E: 1111xxxx.xxxxxxxx.xxxxxxxx 224 239 Note: The IP addresses with the first byte as 0 and 127 are reserved 13 Internet Address Classes # of Addresses Class Available Addr-Structure Example Available # Class A 16 millionFirst byte fixed50/


+ IP Addressing Basics LAB 8. + Objective Name the five different classes of IP addresses Describe the characteristics and use of the different IP address.

IP addressing Use the IP address chart and your knowledge of IP address classes to answer the following questions: 1. What is the decimal and binary range of the first octet of all possible Class B IP addresses? Decimal: From: ________ To: ________ Binary: From: ________ To: ________ 2. Which octet(s) represent the network portion of a Class C IP address? ___________________ + Step 2 Determine basic IP addressing Use the IP address chart and your knowledge of IP address classes/


DCN286 INTRODUCTION TO DATA COMMUNICATION TECHNOLOGY IP Routing and subnet.

value 000000000 10000000128 11000000192 11100000224 11110000240 11111000248 11111100252 11111110254 11111111255 IP address class Traditionally, the IP address was classified in classes: Class A: network 1 – 126 with subnet mask 255.0.0.0 (Initial bit starts as 0) Class B: network 128 – 191 with subnet mask 255/168.100.66, with 3 bits of subnetting: Subnet is 192.168.100.64, broadcast is 192.168.100.95, and valid host range is 192.168.100.65 through 94. 256 −  224  32. 32  32  64, plus 32  96. Subnet/


Page 1 - © Richard L. Goldman IP Address ©Richard L. Goldman January 10, 2002.

8 - © Richard L. Goldman Classes IP addresses are divided into classes. The first three classes represent unicast (point-to-point) addresses: Class A Class B Class C The classes are based on the number of host addresses that can be assigned. Page 9 - © Richard L. Goldman Class A Network Address A Class A address uses only the first octet for the network address. The network portion of a Class A address can range from 000 to 126. This gives/


© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 1 1 Network Addressing Networking for Home and Small Businesses – Chapter.

Into Your Notes  On page 5.2.1.1 copy the chart of IP Address Classes © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of IP AddressesClass A – Range 1-127 – N.H.H.H – First bit in octet will be a/Used in small organizations © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of IP AddressesClass D – Range 224 - 239 – used for multicasting – not for commercial use  Class E – Range 240 - 255 – reserved for experimental use – not for commercial use © 2007 Cisco Systems/


© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 1 1 Network Addressing Networking for Home and Small Businesses – Chapter.

in medium-sized organizations ITE PC v4.0 Chapter 1 9 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of IP AddressesClass C – Range 192 -223 – N.N.N.H – First two bits in octet will be a 11 – Default subnet mask 255.255/.0 Chapter 1 10 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Types of IP AddressesClass D – Range 224 - 239 – used for multicasting – not for commercial use  Class E – Range 240 - 255 – reserved for experimental use – not for commercial use ITE PC v4.0/


CCNA Discovery 1 Chapter 5: Network Addressing. Contents 5.1: IP Addresses & Subnet Masks ◦ 5.1.1 - Purpose of an IP Address 5.1.1 ◦ 5.1.2 – Address Structure.

a risk of running out of IP addresses. One solution to this problem was to reserve some private addresses for use exclusively inside an organization. Private IP Addresses allow hosts within an organization to communicate with one another without needing a unique public IP address. The RFC 1918 standard reserves 3 ranges of Private IP Addresses, for classes A, B and C. Private Network Addresses Private IP Addresses Private addresses can be used internally by/


CIS 1140 Network Fundamentals Chapter 10 – In Depth TCP/IP Networking Collected and Compiled By JD Willard MCSE, MCSA, Network+, Microsoft IT Academy Administrator.

Address Classes Demo Classful Addressing in IPv4 IP addresses and their classes Network information (network ID) –First 8 bits in Class A address –First 16 bits in Class B address –First 24 bits in a Class C address Host information –Last 24 bits in Class A address –Last 16 bits in Class B address –Last 8 bits in Class C address Classful Addressing (continued) Example IP addresses with classful addressing/ Each Subnet ID Indicates the Beginning Value in a Range The Ending Value Is One Less Than the Beginning/


2 Chapter 21 IP Addressing and Related Topics A Guide to TCP/IP.

from the host portion of a network 2 Chapter 255 Summary Several techniques exist to hide internal network IP addresses from outside view, including address masquerading and address substitution Within the Class A, B, and C IP address ranges, the IETF has reserved private IP addresses or address ranges When it comes to obtaining public IP addresses, the Internet Corporation for Assigned Names and Numbers (ICANN), previously the Internet Assigned Numbers Authority, or IANA/


Network+ Guide to Networks 5 th Edition Chapter 4 Introduction to TCP/IP Protocols.

Networks, 5 th Edition44 APIPA (cont’d.) APIPA –Assigns computer’s network adapter IP address from the pool –Assigns subnet default Class B network 255.255.0.0 –Part of operating system No need to register; check with central authority Disadvantage –Computer only communicates with other nodes using addresses in APIPA range Network+ Guide to Networks, 5 th Edition45 APIPA (cont’d.) APIPA suitable use/


IP Addressing and Network Software. IP Addressing  A computer somewhere in the world needs to communicate with another computer somewhere else in the.

per network.  Over 2 million network numbers  254 hosts per network Class C Network range from 192 - 223 Other ClassesClass D and Class E addresses are for special uses. Class D:  Class D network range 224-239  Class D addresses are reserved for multicasting. Class E:  Class E network range 240-254  Class E addresses are reserved for future use  Special IP addresses are known as private addresses. Example Subnetting  When an organization is given a block of/


Chapter 4 Introduction to TCP/IP Protocols. Objectives Identify and explain the functions of the core TCP/IP protocols Explain the TCP/IP model and how.

time and planning for IP address management –Reduce potential for error in assigning IP addresses –Enable users to move workstations and printers –Make IP addressing transparent for mobile users 37 DHCP (cont’d.) DHCP leasing process –Device borrows (leases) an IP address while attached to network Lease time –Determined when client obtains IP address at log on –User may force lease termination DHCP service configuration –Specify leased address range –Configure lease duration/


IP Addressing Part 1. IP Addressing An IP address is a numeric identifier assigned to each machine on an IP network. It designates the specific location.

at 192 and goes to 223, you’ll know it is a Class C IP address. Special Addresses Network Address Ranges: Classes D and E The addresses between 224 to 255 are reserved for Class D and E networks. Class D (224–239) is used for multicast addresses and Class E (240–255) for scientific purposes.. Network Addresses: Special Purpose Some IP addresses are reserved for special purposes, so network administrators can’t ever assign/


Introduction to the IP protocol and IP networks Martin Šrotýř

address Special addresses there are two special classes of IP addresses: –Class D is used for the multicast (group transmission) Class D consists of 224.0.0.0 to 239.255.255.255 addressClass E is reserved for future use Class E consists of 240.0.0.0 to 255.255.255.255 address Class E was not actually used for expansion (IP addresses in IPv6) addresses Class/ # OF IP ADDRESS: 4094 (2 12 - 2 (network number and broadcast)) Subnet Mask EXERCISE: Try to determine the mask and range of IP addresses for these /


© 2001, Cisco Systems, Inc. IP over ATM. © 2001, Cisco Systems, Inc. QOS v1.0—10-2 Objectives Upon completing this module, you will be able to: List the.

} ubr | ubr+ | vbr-nrt atm-qos-parameters random-detect [attach group-name] bundle bundle-name pvc name [vpi/]vci class vc-class-name precedence [other | range ] bump {implicit | explicit precedence-level | traffic} protect {group | vc} ubr | ubr+ | vbr-nrt atm-qos/ Per-Interface CBWFQ Configuration Example class-map MatchCorporate match access-group 100 ! policy-map MARK class MatchCorporate police 2000000 conform-action transmit exceed-action set-clp-transmit ! interface ATM5/0/0 ip address 10.1.1.1 255./


Ch. 2 IP Addressing CCNP - Advanced Routing. IPv4 Address Classes Class A Class B Class C NetworkHost Network Host Network Host 1st octet2nd octet3rd.

You cannot use ping to determine whether the interface is up because the interface has no IP address. n You cannot boot from a network IOS image over an unnumbered serial interface. n You cannot support IP security options on an unnumbered interface. IP Unnumbered drawbacks Class RFC 1918 Internal Address Range CIDR Prefix A 10.0.0.0 – 10.255.255.255 10.0.0.0/


© 2009 Pearson Education, Inc. Publishing as Prentice Hall 8-1 TCP/IP Internetworking Chapter 8 Updated January 2009 Raymond Panko’s Business Data Networks.

Process A Routing Decision –Step 1: Finding All Row Matches Example 2: A Destination IP Address that is in the Range –Destination IP Address of Arriving Packet 128.171.17.13 –Apply the row’s Mask 255.255.0.0/IP Class Scheme From the previous figure, we see that the 32-bit address is split into 4 octets. If the first 4 bits of the first octet are –0xxx: Class A address (0 – 127) –10xx: Class B address(128 – 191) –110x: Class C address (192 – 223) –1110: Class D address (Multicast) –1111: Class E address/


Networks and TCP/IP Part 1. Quick Preview  Networked devices can only talk to devices they are directly connected to Typically via a switch or hub 

 n.n.n.n Each octet has the range 0-255 decimal  00-FF hexadecimal Usually written in the form:  10.192.3.244 (decimal)  Decimal is the most common  0c.1f.3d.22 (hex) IP ClassesIP addresses are grouped in to 5 categories Class A Class B Class C Class D Class E  Only classes A-C are commonly used Classes  3 Major Classes: Class A  Fewest number of networks (organizations)  Each/


Network+ Guide to Networks 5 th Edition Chapter 4 Introduction to TCP/IP Protocols.

Networks, 5 th Edition46 APIPA (cont’d.) APIPA –Assigns computer’s network adapter IP address from the pool –Assigns subnet default Class B network 255.255.0.0 –Part of operating system No need to register; check with central authority Disadvantage –Computer only communicates with other nodes using addresses in APIPA range Network+ Guide to Networks, 5 th Edition47 APIPA (cont’d.) APIPA suitable use/


Cisco Troubleshooting training 1. day IP addressing, routing and bridging basics OSPF routing protocol BGP routing protocol 2. day Cisco 2600 and 7200.

overview Troubleshooting techniques on Cisco routers Configuration analysis IP Address Configuration TCP/IP Address Overview IP Addressing Network Host 32 Bits 8 Bits 172. 16. 122. 204 n Class A: n Class B: n Class C: n Class D: for multicast n Class E: for research N= Network number assigned by NIC H= Host number assigned by network administrator IP Address Classes NHHH NNHH NNNH Recognizing Classes in IP Addresses (First Octet Rule) High Order Bits Octet/


Internet Addressing. When your computer is on the Internet, anything you do requires data to be transmitted and received. For example, when you visit.

a user in company B and thousands of other companies. However, private IP addresses are not reachable from the outside world. IP address classes These IP addresses can further be broken down into classes. These classes are A, B, C, D, E and their possible ranges can be seen in Figure 2 below. ClassStart addressFinish address A0.0.0.0126.255.255.255 B128.0.0.0191.255.255.255 C192/


Guide to TCP/IP Fourth Edition Chapter 2: IP Addressing and Related Topics.

Learning. All Rights Reserved. 45 Summary (contd.) Address masquerading and address substitution –Techniques used to hide internal network IP addresses from outside view Within the Class A, B, and C IP address ranges –IETF has reserved private IP addresses or address ranges Internet Corporation For Assigned Names and Numbers (ICANN) –Ultimate authority for obtaining public IP addresses The world has all but run out of IPv4 addresses © 2013 Course Technology/Cengage Learning. All Rights Reserved/


Internet Protocol version 4 (IPv4) is the fourth revision in the development of the Internet Protocol (IP) and it is the first version of the protocol.

octet of the addresses was redefined to create a set of classes of networks, in a system which later became known as classful networking. The system defined five classes, Class A, B, C, D, and E. The Classes A, B, and/ WHOIS database that provides information about IP address assignments. IPv4 Allocation Special-Use Addresses Of the approximately four billion addresses allowed in IPv4, three ranges of address are reserved for use in private networks. These ranges are not routable outside of private networks/


Network+ Guide to Networks 5 th Edition Chapter 4 Introduction to TCP/IP Protocols.

vary APIPA (Automatic Private IP Addressing) Client cannot communicate without valid IP address What if DHCP server not running? –Microsoft Windows offers Automatic Private IP Addressing Provides IP address automatically IANA (Internet Assigned Numbers Authority) reserved predefined pool of addresses –169.254.0.0 through 169.254.255.255 APIPA (cont’d.) APIPA –Assigns a random IP address from the 169.254.y.x range –Assigns default Class B subnet mask 255.255/


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