A question on CIDR - how is it different from masks?

Опубликовано: 16 Июль 2026
на канале: Bruce Hartpence - Learning Networks
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7

A really good question about CIDR vs. traditional netmasks. How are they used, how is it different and what's the big deal?

For more information and examples with masking:

Intro to Masking:    • Core Network Protocols Chapter 7 - Subnet ...  
Network Masks - Big Idea #1 Mask Manipulation:    • Network Masks - Big Idea #1 Mask Manipulation  
Network Masks - Big Idea #2 Why all this Mask Manipulation?:    • Network Masks - Big Idea #2 Why all this M...  
Network Masks - Big Idea #3 Match Criteria:    • Network Masks - Big Idea #3 Match Criteria  
Network Masks - Big Idea #4 Some Address Space Rules:    • Network Masks - Big Idea #4 Some Address S...  

Subnetting Part 1:    • Subnetting part 1 of 2 - let's do an examp...  
Subnetting Part 2:    • Subnets part 2 of 2 - finishing that examp...  
Subnetting Part 3:    • Aggregation  
A question on CIDR:    • A question on CIDR - how is it different f...  
Subnets and Supernets:    • Subnets and Supernets - How did we get here?  

Subnets and Supernets #1 - How did we get here?:    • Subnets and Supernets - How did we get here?  
Aggregation #-2 A little review and an example:    • Aggregation - a little review and an example.  
Aggregation #3 - Working through a topology:    • Aggregation - working through a topology  
Aggregation #4 - working through a topology:    • Aggregation - working through a topology #4  

Books and other products for networkers

Packet Guide to Core Network Protocols: https://www.oreilly.com/library/view/...

Packet Guide to Routing and Switching: https://www.oreilly.com/library/view/...

Packet Guide to Voice over IP: https://www.oreilly.com/library/view/...

Network Engineering Fundamentals: https://www.oreilly.com/videos/networ...

Advanced Network Engineering: https://www.oreilly.com/videos/advanc...

Virtualization, Networking, and Storage: https://www.oreilly.com/videos/virtua...