Your company is assigned a 172.16.25.0/25 network. Which option is viable for subnetting this network?

To understand why subnetting a 172.16.25.0/25 network into two /26 subnets is a viable option, we need to consider how subnetting works and the implications of the subnet mask.

A /25 subnet has a total of 128 IP addresses, of which 126 can be assigned to hosts (since one is reserved for the network address and another for the broadcast address). When you divide this network into two /26 subnets, each of those subnets will have 64 addresses, allowing for 62 usable host IPs per subnet.

Subnetting 172.16.25.0/25 into two /26 networks would yield the following:

1. The first subnet would be 172.16.25.0/26, with usable IPs from 172.16.25.1 to 172.16.25.62.

2. The second subnet would be 172.16.25.64/26, with usable IPs from 172.16.25.65 to 172.16.25.126.

This approach fits neatly within the original /25 subnet and efficiently utilizes the available addresses while allowing for future growth or segmentation of networks.

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