CLASSFUL NETWORKING IS NO MORE
Classful netwoking was retired in 1993. All of the networking equipment you will ever see uses CIDR. Classful networking is OUTDATED. It is 2007 already and you're still using ancient networking? What is wrong with you?
You do not need to use classful networking! It is possible to become a fully qualified network engineer without ever using classful networking!
"But I need to know it to learn about classless networking!" NO YOU DON'T!
"How can I start to understand subnetting without using classes!?" JUST START LEARNING IT'S NOT HARD!
"I can only understand network sizes neatly within the octet boundaries! I neeed class A class B class C!" SILENCE. I WILL NOT SUFFER YOUR BRAINLESSNESS ANY LONGER, WORM. START BY SUBSTITUTING "class A" FOR /24 IN YOUR BRAIN.
"My teacher/lecturer/goat salesman/boss wants me to learn network classes!" PUNCH HIM OR HER IN THE FACE AND SHOW THEM MY WEBSITE
Classful networking was fun whilst it lasted and we''ll never forget him (RIP classful networks 1981 - 1993) BUT HE'S GONE. IT'S TIME TO MOVE ON
Go and learn classless subnetting now and join us in the twenty first century, bozo.
I HAVE GOOD NEWS!
The inherent problems in classful networking were solved! We no longer have to be shackled by the chains of:
