I have a question:
If each part of an IP is an octet, then why do some IPs have only 1 digit in the mid or last section?
Like in Dropkickmurphys example, 192.168.1.2. Why just 1.2., and not something like 103.204? Is it because, like in sshagy's explanation, because IPs follow consecutively, starting from 0 to 255? And once the last part of the IP reaches 255, the second part increments by 1? Or are higher numbered IPs (like 255) reserved for different classes?