IP Subnet Partitioning method

Terms

1, IP address: is a 32-bit binary decimal number representation

such as: 192.168.1.1--11000000.10101000.00000001.00000001

2, Subnet mask: is a network bit full ' 1 ', host bit full ' 0 ' dotted decimal notation

such as: 255.255.255.0--11111111.11111111.11111111.00000000

3, network address: In the IP address of the network part of the same, the main opportunity of the total ' 0 ' number

such as: 192.168.1.0--11000000.10101000.00000001.00000000

Network part of the host part

4, broadcast address: IP address in the network part of the same, the host part of the total ' 1 ' number

such as: 192.168.1.255--11000000.10101000.00000001.11111111

5, available IP range: the "network Address" and "broadcast address"

such as: 192.168.1.1~~192.168.1.254

"Group number"

1, 128 64 32 16 8 4 2 1

2, 128 192 224 240 248 252 254 255 (Compute subnet mask N): From left to right

3, 255 127 63 31 15 7 3 1 (compute broadcast address m): from right to left

"Subnet Division"

1, definition: from the main seat borrow as a network

2. Dividing the 192.168.1.0/24 into subnets (extrapolation)

(Subnet 1) network address: 192.168.1.0 (Subnet 2) network address: 192.168.1.128

Broadcast address: 192.168.1.127 broadcast address: 192.168.1.255

Subnet mask: 192.168.1.128 Subnet Mask: 192.168.1.128

Available ip:1.1~~1.126 available ip:1.129~~1.254