Class A Subnetting Thanks guys

pigeoneggtrainsΔίκτυα και Επικοινωνίες

24 Οκτ 2013 (πριν από 3 χρόνια και 7 μήνες)

74 εμφανίσεις

Class A Subnetting

Thanks guys



OK, So I am wrong…

But, I still feel the text book is wrong…

The Practice Example…

Class A License
10.0.0.0

Subnet Mask
255.255.192.0

Subnet

10.0.64.0

10.0.128.0

10.0.192.0

10.1.0.0

Broadcast

10.0.127.255

10.0.191.255

10.0.255.255

10.1.63.255

The Book…
(Bad Book)

10.1.0.0


10.1.64.0


10.1.128.0

10.1.0.1


10.1.64.1


10.1.128.1

10.1.63.254

10.1.127.254

10.1.191.254

10.1.63.255

10.1.127.255

10.1.191.255

10.0.64.0


10.0.128.0



10.1.0.0

10.0.64.1


10.0.128.1



10.1.0.1

10.0.127.254

10.0.191.254


10.1.63.254

10.0.127.255

10.0.191.255


10.1.63.255

Mr. Foster…
(great guy)

The Book…
(Bad Book)

10.1.0.0

2
17

= 131,076 IP addresses lost

10.0.64.0

2
14

= 32,768 IP addresses lost

Mr. Foster…
(great guy)

Score


Foster



…gain of 3 Subnets and 49,146 hosts

Book
(Bad Book)


…nothing!

Advanced Subnet Calculator 1.1

Advanced Subnet Calculator is an all
-
in
-
one tool.


Features:


Response time


Address class information


Forward and reverse DNS resolution


Address translation (hexadecimal and binary)

Advanced Subnet Calculator 1.1

Advanced Subnet Calculator is an all
-
in
-
one tool.


This program has …



_calculating subnets based on mask bits, mask,


host bits, hosts per subnet and number of subnets.


_Calculate a list of addresses for any subnet.



_This is the tool to have if you are going to be


doing any subnet work for your LAN setup.


Subnet


Mask


Size

Host Range



Broadcast

10.0.0.0


255.255.192.0

16382

10.0.0.1 to 10.0.63.254


10.0.63.255

10.0.64.0


255.255.192.0

16382

10.0.64.1 to 10.0.127.254


10.0.127.255

10.0.128.0

255.255.192.0

16382

10.0.128.1 to 10.0.191.254


10.0.191.255

10.0.192.0

255.255.192.0

16382

10.0.192.1 to 10.0.255.254


10.0.255.255

10.1.0.0


255.255.192.0

16382

10.1.0.1 to 10.1.63.254


10.1.63.255

10.1.64.0


255.255.192.0

16382

10.1.64.1 to 10.1.127.254


10.1.127.255

10.254.128.0

255.255.192.0

16382

10.254.128.1 to 10.254.191.254


10.254.191.255

10.254.192.0

255.255.192.0

16382

10.254.192.1 to 10.254.255.254


10.254.255.255

10.255.0.0


255.255.192.0

16382

10.255.0.1 to 10.255.63.254


10.255.63.255

10.255.64.0

255.255.192.0

16382

10.255.64.1 to 10.255.127.254


10.255.127.255

10.255.128.0

255.255.192.0

16382

10.255.128.1 to 10.255.191.254


10.255.191.255

10.255.192.0

255.255.192.0

16382

10.255.192.1 to 10.255.255.254


10.255.255.255