An organization has been assigned the network number 200.25.100.0/24 and it needs to create a set of subnets that supports up to 60 hosts on each subnet. How to partition the IP address spaces to support the maximum number of networks? List all possible networks (use slash notations).
given ip address 200.25.100.0/24
Address: 200.25.100.0 11001000.00011001.01100100 .00000000 Netmask: 255.255.255.0 = 24 11111111.11111111.11111111 .00000000
taking and of address and netmask we get network address that is
200.25.100.0 11001000.00011001.01100100 .00000000
given maximum host is 2^6>=60
so last 6 bit is reserved for the host and first 2 bit of 4th octet is reserved for subnet address
subnet address | host min | host max | broadcast address |
200.25.100.0 | 200.25.100.1 | 200.25.100.62 | 200.25.100.63 |
200.25.100..64 | 200.25.100.65 | 200.25.100.126 | 200.25.100.127 |
200.25.100.128 | 200.25.100.129 | 200.25.100.190 | 200.25.100.191 |
200.25.100.192 | 200.25.100.193 | 200.25.100.254 | 200.25.100.255 |
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