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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.


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