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You can “borrow” one of the host ID bits to divide the network 192.168.1.0 into two separate sub-
networks. The subnet mask is now 25 bits (255.255.255.128 or /25).
The “borrowed” host ID bit can have a value of either 0 or 1, allowing two subnets; 192.168.1.0
/25 and 192.168.1.128 /25.
The following figure shows the company network after subnetting. There are now two sub-
networks, A and B.
Figure 44 Subnetting Example: After Subnetting
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