sub-netting for 62 hosts only gives me 3 usable networks? [closed]

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.

Closed 8 years ago.

Improve this question

I use the following table to workout the required subnet mask for my network of 62 hosts which is 255.255.255.192 which according to the table gives me 4 use-able networks.

In this case the first network address is 192.168.1.64 with a range of 65-126 and broadcast of 127.

second network: 192.168.1.128, range=129-190, broadcast=191.

third network: 192.168.1.192, range=193-254, broadcast=255.

But I don't understand the fourth network. If the table is correct it should start with 192.168.1.256 is this correct? In which case what would the range and broadcast be for this fourth network?

Answer 1

192.168.1.0 with a range of 1-62 and broadcast of .63 is the block you missed.