VLSM Chart - Last Octet Sub Netting
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VLSM chart last octet subnetting Prefix: /24 Netmask: .0 00000000 1 subnet 254 hosts each 254 total hosts Prefix: /25 Netmask: .128 10000000 2 subnets 126 hosts each 252 total hosts Prefix: /26 Netmask: .192 11000000 4 subnets 62 hosts each 248 total hosts Prefix: /27 Netmask: .224 11100000 8 subnets 30 hosts each 240 total hosts Prefix: /28 Netmask: .240 11110000 16 subnets 14 hosts each 224 total hosts Prefix: /29 Netmask: .248 11111000 32 subnets 6 hosts each 192 total hosts Prefix: /30 Netmask: .252 11111100 64 subnets 2 hosts each 128 total hosts .0 .0 .0 .0 .0 .0 .0 .4 .8 .8 .12 .16 .16 .16 .20 .24 .24 .28 .32 .32 .32 .32 .36 .40 .40 .44 .48 .48 .48 .52 .56 .56 .60 .64 .64 .64 .64 .64 .68 .72 .72 .76 .80 .80 .80 .84 .88 .88 .92 .96 .96 .96 .96 .100 .104 .104 .108 .112 .112 .112 .116 .120 .120 .124 .128 .128 .128 .128 .128 .128 .132 .136 .136 .140 .144 .144 .144 .148 .152 .152 .156 .160 .160 .160 .160 .164 .168 .168 .172 .176 .176 .176 .180 .184 .184 .188 .192 .192 .192 .192 .192 .196 .200 .200 .204 .208 .208 .208 .212 .216 .216 .220 .224 .224 .224 .224 .228 .232 .232 .236 .240 .240 .240 .244 .248 .248 .252 Mnemonic: Each column shows the network address for a block. Broadcast address is the network address of the next block underneath minus 1, or 255. Valid hosts addresses are in the range (network address plus 1 - broadcast address minus 1). by Daniele Raffo www.crans.org/~raffo v1.0 12/7/2006
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Transcript of VLSM Chart - Last Octet Sub Netting
VLSM chart last octet subnettingPrefix: /24Netmask: .0 000000001 subnet 254 hosts each254 total hosts
Prefix: /25Netmask: .128 100000002 subnets 126 hosts each252 total hosts
Prefix: /26Netmask: .192 110000004 subnets 62 hosts each248 total hosts
Prefix: /27Netmask: .224 111000008 subnets 30 hosts each240 total hosts
Prefix: /28Netmask: .240 1111000016 subnets 14 hosts each224 total hosts
Prefix: /29Netmask: .248 1111100032 subnets 6 hosts each192 total hosts
Prefix: /30Netmask: .252 1111110064 subnets 2 hosts each128 total hosts
.0
.0
.0
.0
.0.0
.0
.4
.8.8.12
.16.16
.16
.20
.24.24.28
.32
.32.32
.32
.36
.40.40.44
.48.48
.48
.52
.56.56.60
.64
.64
.64.64
.64
.68
.72.72.76
.80.80
.80
.84
.88.88.92
.96
.96.96
.96
.100
.104.104.108
.112.112
.112
.116
.120.120.124
.128
.128
.128
.128.128
.128
.132
.136.136.140
.144.144
.144
.148
.152.152.156
.160
.160.160
.160
.164
.168.168.172
.176.176
.176
.180
.184.184.188
.192
.192
.192.192
.192
.196
.200.200.204
.208.208
.208
.212
.216.216.220
.224
.224.224
.224
.228
.232.232.236
.240.240
.240
.244
.248.248.252
Mnemonic: Each column shows the network address for a block. Broadcast address is the network address of the next block underneath minus 1, or 255. Valid hosts addresses are in the range (network address plus 1 - broadcast address minus 1).
by Daniele Raffo www.crans.org/~raffo v1.0 12/7/2006
