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Lab Identifying IPv4 Addresses

2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page 2 of 4

IP Address/Prefix

Network/Host

N,n = Network

H,h = Host Subnet Mask Network Address

192.168.10.10/24 N.N.N.H 255.255.255.0 192.168.10.0

10.101.99.17/23 N.N.nnnnnnnh.H 255.255.254.0 10.101.98.0

209.165.200.227/27

172.31.45.252/24

10.1.8.200/26

172.16.117.77/20

10.1.1.101/25

209.165.202.140/27

192.168.28.45/28

Step 2: Analyze the table below and list the range of host and broadcast addresses given a network/prefix mask pair.

The first row shows an example of how the table should be completed.

IP Address/Prefix First Host Address Last Host Address

Broadcast Address

192.168.10.10/24 192.168.10.1 192.168.10.254 192.168.10.255

10.101.99.17/23

209.165.200.227/27

172.31.45.252/24

10.1.8.200/26

172.16.117.77/20

10.1.1.101/25

209.165.202.140/27

192.168.28.45/28

Part 2: Classify IPv4 Addresses In Part 2, you will identify and classify several examples of IPv4 addresses.

Step 1: Analyze the table shown below and identify the type of address (network, host, multicast, or broadcast address).

The first row shows an example of how the table should be completed.

Lab Identifying IPv4 Addresses

2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page 3 of 4

IP Address Subnet Mask Address Type

10.1.1.1 255.255.255.252 host

192.168.33.63 255.255.255.192

239.192.1.100 255.252.0.0

172.25.12.52 255.255.255.0

10.255.0.0 255.0.0.0

172.16.128.48 255.255.255.240

209.165.202.159 255.255.255.224

172.16.0.255 255.255.0.0

224.10.1.11 255.255.255.0

Step 2: Analyze the table shown below and identify the address as public or private.

IP Address/Prefix Public or Private

209.165.201.30/27

192.168.255.253/24

10.100.11.103/16

172.30.1.100/28

192.31.7.11/24

172.20.18.150/22

128.107.10.1/16

192.135.250.10/24

64.104.0.11/16

Step 3: Analyze the table shown below and identify whether the address/prefix pair is a valid host address.

Lab Identifying IPv4 Addresses

2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page 4 of 4

IP Address/Prefix Valid Host Address? Reason

127.1.0.10/24

172.16.255.0/16

241.19.10.100/24

192.168.0.254/24

192.31.7.255/24

64.102.255.255/14

224.0.0.5/16

10.0.255.255/8

198.133.219.8/24

Reflection Why should we continue to study and learn about IPv4 addressing if the available IPv4 address space is depleted?

NNnnnnnnnhH20916520022727: N.N.N.nnnhhhhh255255254020916520022727: 255.255.255.2241010198020916520022727: 209.165.200.28NNnnnnnnnhH172314525224: N.N.N.H2552552540172314525224: 255.255.255.010101980172314525224: 172.31.45.252NNnnnnnnnhH101820026: N.N.nnnnnnhh.H2552552540101820026: 255.255.255.19210101980101820026: 10.1.8.200NNnnnnnnnhH172161177720: N.N.nnnnhhhh.H2552552540172161177720: 255.255.240.010101980172161177720: 172.16.117.77NNnnnnnnnhH101110125: N.N.N.nhhhhhhh2552552540101110125: 255.255.255.12810101980101110125: 10.1.1.0NNnnnnnnnhH20916520214027: N.N.N.nnnhhhhh255255254020916520214027: 255.255.255.2241010198020916520214027: 209.165.202.128NNnnnnnnnhH192168284528: N.N.N.nnnnhhhh2552552540192168284528: 255.255.255.24010101980192168284528: 192.168.28.3219216810110101991723: 10.101.98.11921681025410101991723: 10.101.99.2541921681025510101991723: 10.101.99.25519216810120916520022727: 209.165.200.2251921681025420916520022727: 209.165.200.2541921681025520916520022727: 209.165.200.255192168101172314525224: 172.31.45.119216810254172314525224: 172.31.45.25419216810255172314525224: 172.31.45.255192168101101820026: 10.1.8.19319216810254101820026: 10.1.8.25419216810255101820026: 10.1.8.255 192168101172161177720: 172.16.112.119216810254172161177720: 172.16.127.25419216810255172161177720: 172.16.127.255192168101101110125: 10.1.1.119216810254101110125: 10.1.1.12619216810255101110125: 10.1.1.12719216810120916520214027: 209.165.202.1291921681025420916520214027: 209.165.202.1581921681025520916520214027: 209.165.202.159192168101192168284528: 192.168.28.33 19216810254192168284528: 192.168.28.4619216810255192168284528: 192.168.28.47host255255255192: broadcasthost25525200: hosthost2552552550: hosthost255000: hosthost255255255240: networkhost255255255224: broadcasthost25525500: hosthost2552552550_2: hostPublic or Private2091652013027: PublicaPublic or Private19216825525324: PrivadaPublic or Private101001110316: privadaPublic or Private17230110028: privadaPublic or Private1923171124: privadaPublic or Private172201815022: publicaPublic or Private12810710116: privadaPublic or Private1921352501024: privadaPublic or Private6410401116: publicaValid Host Address127101024: siReason127101024: Valid Host Address17216255016: siReason17216255016: Valid Host Address241191010024: siReason241191010024: Valid Host Address192168025424: siReason192168025424: Valid Host Address19231725524: noReason19231725524: broadcastValid Host Address6410225525514: noReason6410225525514: broadcastValid Host Address22400516: siReason22400516: Valid Host Address1002552558: siReason1002552558: Valid Host Address198133219824: siReason198133219824: Text1: Mientras IPV6 desplace por completo al IPV4, debemos seguir empleando este tipo de direccionamiento.