ZyXEL P-794H User Guide - Page 271
Subnetting Example: Before Subnetting
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Appendix D IP Addresses and Subnetting The following figure shows the company network before subnetting. Figure 193 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. The following figure shows the company network after subnetting. There are now two sub-networks, A and B. Figure 194 Subnetting Example: After Subnetting P-794H User's Guide 271
![](/manual_guide/products/zyxel-p794h-user-guide-bbafe41/271.png)
Appendix D IP Addresses and Subnetting
P-794H User’s Guide
271
The following figure shows the company network before subnetting.
Figure 193
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.
The following figure shows the company network after subnetting. There are now
two sub-networks,
A
and
B
.
Figure 194
Subnetting Example: After Subnetting