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 32768 16384 8192 4096 2048 1024 512 256 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /17 /18 /19 /20 /21 /22 /23 /24 ----> CIDR 32766 16382 8190 3094 2046 1022 510 254 ----> Host 128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 1 - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001 

 32768 16384 8192 4096 2048 1024 512 256 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /17 /18 /19 /20 /21 /22 /23 /24 ----> CIDR 32766 16382 8190 3094 2046 1022 510 254 ----> Host 128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 * - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001 

 32768 16384 8192 4096 2048 1024 512 256 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /17 /18 /19 /20 /21 /22 /23 /24 ----> CIDR 32766 16382 8190 3094 2046 1022 510 254 ----> Host 128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 1 - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001   Example Network=192.168.1.0 /24; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.0 Ip address range 192.168.1.0----192.168.1.255 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.254; Broadcast address = 192.168.1.255;  254 Host ********************************************************************************  Network=192.168.1.0 /25; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.128 Ip address range 192.168.1.0----192.168.1.128 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.126; Broadcast address = 192.168.1.127;  126 Hosts   ********************************************************************************  When the CIDR increased ex. /24. /25. the network will divided by the binary number. /25 increase network 0-128| 128- 256 | you will have 2 Networks /26 increase network 0-64 | 64 - 128 | 128-192 | 192-256 you will have 4 Networks . . . /32...... 

 32768 16384 8192 4096 2048 1024 512 256 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /17 /18 /19 /20 /21 /22 /23 /24 ----> CIDR 32766 16382 8190 3094 2046 1022 510 254 ----> Host 128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 1 - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001  

 Example Network=192.168.1.0 /24; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.0 Ip address range 192.168.1.0----192.168.1.255 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.254; Broadcast address = 192.168.1.255; 254 Host  

 Network=192.168.1.0 /25; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.128 Ip address range 192.168.1.0----192.168.1.128 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.126; Broadcast address = 192.168.1.127; 126 Hosts  

 When the CIDR increased ex. /24. /25. the network will divided by the binary number. /25 increase network 0-128| 128- 256 | you will have 2 Networks /26 increase network 0-64 | 64 - 128 | 128-192 | 192-256 you will have 4 Networks . . . /32...... 

 128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 1 - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001 Example Network=192.168.1.0 /24; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.0 Ip address range 192.168.1.0----192.168.1.255 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.254; Broadcast address = 192.168.1.255; 254 Host ******************************************************************************** Network=192.168.1.0 /25; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.128 Ip address range 192.168.1.0----192.168.1.128 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.126; Broadcast address = 192.168.1.127; 126 Hosts ******************************************************************************** When the CIDR increased ex. /24. /25. the network will divided by the binary number. /25 increase network 0-128| 128- 256 | you will have 2 Networks /26 increase network 0-64 | 64 - 128 | 128-192 | 192-256 you will have 4 Networks . . . /32...... 

 32768 16384 8192 4096 2048 1024 512 256 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /17 /18 /19 /20 /21 /22 /23 /24 ----> CIDR 32766 16382 8190 3094 2046 1022 510 254 ----> Host 128 64 32 16 8 4 2 1 ----> Binary 128 192 224 240 248 252 254 255 ----> Sunet Mask /25 /26 /27 /28 /29 /30 /31 /32 ----> CIDR 126 62 30 14 6 2 1 - ----> Host 128 64 32 16 8 4 2 1 10000000 01000000 00100000 00010000 00001000 00000100 00000010 00000001 Example Network=192.168.1.0 /24; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.0 Ip address range 192.168.1.0----192.168.1.255 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.254; Broadcast address = 192.168.1.255; 254 Host ******************************************************************************** Network=192.168.1.0 /25; Network Address with Subnet mask = 192.168.1.0 subnet 255.255.255.128 Ip address range 192.168.1.0----192.168.1.128 Fist available ip address 192.168.1.1; Last available ip address 192.168.1.126; Broadcast address = 192.168.1.127; 126 Hosts ******************************************************************************** When the CIDR increased ex. /24. /25. the network will divided by the binary number. /25 increase network 0-128| 128- 256 | you will have 2 Networks /26 increase network 0-64 | 64 - 128 | 128-192 | 192-256 you will have 4 Networks . . . /32......