(reposting my article comment from here:)
NetworkWorld: Whatever happened to the IPv4 address crisis?
I'm sure you've heard all about how IPv4 is dying. It's running out of available numbers. IPv6 is touted as the big solution, but it's cumbersome, complicated, and not backwards compatible with IPv4.
But IPv4 can survive. It just needs some small changes.
I hereby propose the CIDR 8 / Class A clawback: "We were here first, so we're claiming 16,777,216 addresses (1/256th of the entire address space) for ourselves! You can't have it, nyah nyah!" Oh really, IBM, Apple, MIT, General Electric, Ford, Halliburton?
Wikipedia article: List of assigned /8 IPv4 address blocks
New rule: If you're not a regional address assignor (APNIC, ARIN, RIPE, etc), you have to give up your IPv4 /8 and get more sane /24 allocations or smaller.
New rule: If you're not a regional address assignor you cannot be assigned anything larger than an IPv4 /24 (256 addresses). Consecutive blocks of /24 are fine. You cannot be reassigned more than 16 /24 blocks (4096 addresses) within your original /8.
New rule: Anyone who refuses to release control of their /8 after five years will be made unroutable except for the first /24 of that space (ex, Apple 17.0.0.0 /24), and the rest of the addresses reassigned by force.
They might claim a decades-old reliance on a /8 network architecture, but this argument is completely blown away by the fact that they could switch to the dedicated private 10.0.0.0 /8 range and still have full end-to-end connectivity across the entire 16 million address space.
NetworkWorld: Whatever happened to the IPv4 address crisis?
I'm sure you've heard all about how IPv4 is dying. It's running out of available numbers. IPv6 is touted as the big solution, but it's cumbersome, complicated, and not backwards compatible with IPv4.
But IPv4 can survive. It just needs some small changes.
I hereby propose the CIDR 8 / Class A clawback: "We were here first, so we're claiming 16,777,216 addresses (1/256th of the entire address space) for ourselves! You can't have it, nyah nyah!" Oh really, IBM, Apple, MIT, General Electric, Ford, Halliburton?
Wikipedia article: List of assigned /8 IPv4 address blocks
New rule: If you're not a regional address assignor (APNIC, ARIN, RIPE, etc), you have to give up your IPv4 /8 and get more sane /24 allocations or smaller.
New rule: If you're not a regional address assignor you cannot be assigned anything larger than an IPv4 /24 (256 addresses). Consecutive blocks of /24 are fine. You cannot be reassigned more than 16 /24 blocks (4096 addresses) within your original /8.
New rule: Anyone who refuses to release control of their /8 after five years will be made unroutable except for the first /24 of that space (ex, Apple 17.0.0.0 /24), and the rest of the addresses reassigned by force.
They might claim a decades-old reliance on a /8 network architecture, but this argument is completely blown away by the fact that they could switch to the dedicated private 10.0.0.0 /8 range and still have full end-to-end connectivity across the entire 16 million address space.
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