alt for @[email protected]Sep 21, 2018

Monday marks a quarter century of classless routing, or CIDR.

25 years since Class A, B, and C addresses were the standard.

On #CIDRDay, saying "class C address" outside a historic/ironic context is a request for enthusiastic wedgies.

Otherwise: cider!

How will you celebrate? #sysadmin #netadmin

Show threadthe Hearth Sep 21, 2018
@mwlucas Is there any simple way to explain to a non-networking electrical engineer what exactly this means? I'm curious!
Show threadalt for @[email protected]
@Felthry there's a decent explanation at https://www.digitalocean.com/community/tutorials/understanding-ip-addresses-subnets-and-cidr-notation-for-networking, or I have a writeup in "Networking for Systems Administrators," https://mwl.io/nonfiction/networking#n4sa
Understanding IP Addresses, Subnets, and CIDR Notation for Networking | DigitalOcean

IP addresses, networks, submasks, and CIDR notation can be difficult concepts to understand. In this guide, we will cover some of the basic ideas behind how these systems work together to allow computers to communicate over the internet.

Sep 21, 2018 at 5:07pmWeb