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Subnetting Solutions

The document provides examples of subnetting three different IP networks - 220.32.6.0/26 with 4 subnets and 62 hosts per subnet, 172.30.0.0/19 with 8 subnets and up to 8,190 hosts per subnet, and 10.0.0.0/23 with 32,768 subnets and 510 hosts per subnet. It lists the subnet addresses, first and last valid host addresses, and broadcast addresses for each subnet in the three networks.

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204 views2 pages

Subnetting Solutions

The document provides examples of subnetting three different IP networks - 220.32.6.0/26 with 4 subnets and 62 hosts per subnet, 172.30.0.0/19 with 8 subnets and up to 8,190 hosts per subnet, and 10.0.0.0/23 with 32,768 subnets and 510 hosts per subnet. It lists the subnet addresses, first and last valid host addresses, and broadcast addresses for each subnet in the three networks.

Uploaded by

kallady
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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IST 321: Network Performance Design and Management

Subnetting Practice

Network: 220.32.6.0/26

Class of network: Class C (IP address starts with 220)

Subnet mask (in decimal): 255.255.255.192

Number of subnets: 22 = 4

Number of hosts: 26 - 2 = 62

Subnet address for each subnet: block size = 256 - subnet mask = 256 - 192 = 64
Broadcast address for each subnet:
Valid host addresses for each subnet:

Subnet .0 .64 .128 .192


First Host .1 .65 .129 .193
Last Host .62 .126 .190 .254
Broadcast .63 .127 .191 .255

Network: 172.30.0.0/19

Class of network: Class B (IP address starts with 172)

Subnet mask (in decimal): 255.255.224.0

Number of subnets: 23 = 8

Number of hosts: 213 - 2 = 8,190

Subnet address for each subnet: block size = 256 - subnet mask = 256 - 224 = 32
Broadcast address for each subnet:
Valid host addresses for each subnet:

Subnet .0.0 .32.0 .64.0 .96.0 .128.0 .160.0 .192.0 .224.0


First Host .0.1 .32.1 .64.1 .96.1 .128.1 .160.1 .192.1 .224.1
Last Host .31.254 .63.254 .95.254 .127.254 .159.254 .191.254 .223.254 .255.254
Broadcast .31.255 .63.255 .95.255 .127.255 .159.255 .191.255 .223.255 .255.255

MORE ON BACK
Network: 10.0.0.0/23

Class of network: Class A (IP address starts with 10)

Subnet mask (in decimal): 255.255.254.0

Number of subnets: 215 = 32,768

Number of hosts: 29 - 2 = 510

Subnet address for each subnet: block size = 256 - subnet mask = 256 - 254 = 2
Broadcast address for each subnet:
Valid host addresses for each subnet:

Subnet .0.0.0 .0.2.0 0.4.0 .255.250.0 .255.252.0 .255.254.0


First Host .0.0.1 .0.2.1 0.4.1 .255.250.1 .255.252.1 .255.254.1
Last Host .0.1.254 .0.3.254 0.5.254 .255.251.254 .255.253.254 .255.255.254
Broadcast .0.1.255 .0.3.255 0.5.255 .255.251.255 .255.253.255 .255.255.255

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