IP Addressing

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32 - N = H

2^H = Number of Hosts

e.g.

146.227.150.255 / 32

32 - 32 = 0

2^0 = 1 host (.255)

146.227.150.248 / 29

32 - 29 = 3

2^3 = 8 hosts (.248 - .255)

146.227.150.0 / 24

32 - 24 = 8

2^8 = 256 hosts (.0 - .255)

146.227.0.0 / 16

32 - 16 = 16

2^16 = 65536 hosts (.0.0 - .255.255)

172.28.97.41 / 29

32 - 29 = 3

2^3 = 8 hosts (.40 - .47)

1111 1111 . 1111 1111 . 1111 1111 . 1111 1110

1001 0010 . 1110 0011 . 1001 0110 . 1111 1111

1111 1111 . 1111 1111 . 1111 1111 . 1111 1000

1001 0010 . 1110 0011 . 1001 0110 . 1111 1000

1001 0010 . 1110 0011 . 1001 0110 . 1111 1111

1111 1111 . 1111 1111 . 1111 1111 . 0000 0000

1001 0010 . 1110 0011 . 1001 0110 . 0000 0000

1001 0010 . 1110 0011 . 1001 0110 . 1111 1111

1111 1111 . 1111 1111 . 0000 0000 . 0000 0000

1001 0010 . 1110 0011 . 0000 0000 . 0000 0000

1001 0010 . 1110 0011 . 1111 1111 . 1111 1111

1111 1111 . 1111 1111 . 1111 1111 . 1111 1000

1010 1100 . 0001 1100 . 0110 0001 . 0010 1000

1010 1100 . 0001 1100 . 0110 0001 . 0010 1111

Bottom (lowest) address is network

Top (highest) address is broadcast

/N is Netmask (Number of 1s)

From 0-32

Higher number, less resources

network: 146.227.150.248

broadcast: 146.227.150.255

network: 146.227.150.0

broadcast: 146.227.150.255

network: 146.227.0.0

broadcast: 146.227.255.255

network: 172.28.97.40

broadcast: 172.28.97.47

Netmasks

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