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Happy [Belated] #CIDRDay! 25 Years of CIDR Addressing

posted by chromas on Wednesday September 26 2018, @04:30PM   Printer-friendly
from the quite-a-bit-of-an-improvement dept.

canopic jug writes:

Technology and science fiction author Michael W. Lucas reports the adoption of Classless Interdomain Routing (CIDR) networking as a technology milestone in 1993. Back on 24 September 1993, the IETF published RFC 1519 thus designating Classless Interdomain Routing (CIDR) and variable length subnet masks as the standard which were further described in a series of RFCs. So Monday was the 25th anniversary of the occasion.

CIDR entry on Wikipedia notes:

Before the implementation of CIDR, IPv4 networks were represented by the starting address and the subnet mask, both written in dot-decimal notation. Thus, 192.168.100.0/24 was often written as 192.168.100.0/255.255.255.0.

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Happy [Belated] #CIDRDay! 25 Years of CIDR Addressing | Log In/Create an Account | Top | 14 comments | Search Discussion
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  • (Score: 3, Touché) by ikanreed on Wednesday September 26 2018, @04:56PM (3 children)

    by ikanreed (3164) Subscriber Badge on Wednesday September 26 2018, @04:56PM (#740310) Journal

    You, current reader, don't care.

    If you're the kind of nerd who obsesses over internet protocols, you just want the world to be ipv6 compliant.

    If you like ease-of-life standards to make programming easier, there's been 6 billion of them since that are even better.

    If you're even remotely normal(you're not, but let's pretend), how IP addresses are expressed is probably one of the most uninteresting things in the world.

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  • (Score: 1, Funny) by Anonymous Coward on Wednesday September 26 2018, @06:25PM (1 child)

    by Anonymous Coward on Wednesday September 26 2018, @06:25PM (#740363)

    Well, since you brought up the topic, I was mostly curious to see who contributed the lonely post to this article...

    • (Score: 2) by ikanreed on Wednesday September 26 2018, @06:57PM

      by ikanreed (3164) Subscriber Badge on Wednesday September 26 2018, @06:57PM (#740388) Journal

      Yeah, you're right. It's 500% sadder for me to care about who cares than for someone to just care about a silly anniversary.

  • (Score: 3, Interesting) by FatPhil on Wednesday September 26 2018, @11:32PM

    by FatPhil (863) <{pc-soylent} {at} {asdf.fi}> on Wednesday September 26 2018, @11:32PM (#740519) Homepage
    I, me reader, do care. Because about 5 years ago, my /etc/hosts.allow stopped working after an upgrade. It was the '/24' that was now no longer accepted, and I had to change it to 255.255.255.0. Google couldn't tell me where or why the change was made. It broke my home and office networks for a large chunk of a day, so I was right royally pissed off. And consequently - I still care, as I'm bitter!
    --
    Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves