PracNet Subnet Guide - 3rd Octet
Practical Networking’s Subnetting Mastery playlist
The /17 - /24 Range, AKA: 3rd octet Range
- Draw a fourth row for the cheat sheet that ranges from /24 to /17, written from RIGHT to LEFT
- When solving questions, don’t forget that you’re working with the 3rd octet of the IP address now, so we’ll be incrementing the group size in the 3rd octet of our IP addresses.
- Also, watch out for changes in the 4th octet when calculating Network IP, Broadcast IP and etc.
Examples
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