NotePad Subnetting
2^0 = 0
2^1 = 1
2^2 = 4
2^3 = 8
2^4 = 16
2^5 = 32
2^6 = 64
2^7 = 128
2^8 = 256
2^9 = 512
2^10 = 1,024
2^11 = 2,048
2^12 = 4,096
2^13 = 8,192
2^14 = 16,384
155.55.10.0 /24
255.255.255.0
255 . 255 . 255 . 0
11111111.11111111.11111111.00000000
____________________________________________
How many devices/zeros?
What is the increment?
What is the new subnet mask?
155.55.10.0 - 155.55.10. /
VLAN 75 - 100 end devices 2^ =
255.255.255. 00000000 =
____________________________________________
How many devices/zeros?
What is the increment?
What is the new subnet mask?
155.55.10. - 155.55.10. /
VLAN 85 - 50 end devices 2^ =
255.255.255. 00000000 =
____________________________________________
How many devices/zeros?
What is the increment?
What is the new subnet mask?
155.55.10. - 155.55.10. /
VLAN 95 - 25 end devices 2^ =
255.255.255. 00000000 =
_________________________________________________________________________
128 64 32 16 8 4 2 1 . 128 64 32 16 8 4 2 1 . 128 64 32 16 8 4 2 1 . 128 64 32 16 8 4 2 1
1 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 . 1 1 1 1 1 0 0 0 . 0 0 0 0 0 0 0 0
200.100.10.2 /29
255 . 255 . .
11111111.11111111.11111111.11111000
200.99.0.0 /23
255 . 255 . 254 . 0
11111111.11111111.11111110.00000000
200.103.12.0 /22
255 . 255 . 252 . 0
11111111.11111111.11111100.00000000
200.102.0.0 /21
255 . 255 . 248 . 0
11111111.11111111.11111000.00000000