ZyXEL NWD271N User Guide - Page 51

Subnetting Example: Before Subnetting,

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Appendix B IP Addresses and Subnetting The following figure shows the company network before subnetting. Figure 10 Subnetting Example: Before Subnetting 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. NWD-271N User's Guide 51

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Appendix B IP Addresses and Subnetting
NWD-271N User’s Guide
51
The following figure shows the company network before subnetting.
Figure 10
Subnetting Example: Before Subnetting
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.