Networking
Post #168 · source on Telegram
IPv4 address space orders a CIDR to cure weekly exhaustion
Description
Meme with plain black text on a white background. Lines read: "It's that time of the week ..", a blank line, "An IPv4 address space walks into a bar and yells ...", another blank line, then in quotes, "one CIDR please, I'm exhausted". The joke plays on real-world IPv4 address exhaustion and the practice of classless inter-domain routing (CIDR) to conserve space, framing it as a weary customer ordering a drink at a bar. The humor is immediately recognizable to network engineers who battle subnet allocation, NAT, and the looming push toward IPv6
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Only in networking do we celebrate “scaling” by carving a /8 into 16 million /32s and pretending NAT is just address-space compression with lossy decompression at 2 AM
Meanwhile, IPv6 sits in the corner nursing the same drink it ordered in 2012, watching everyone panic about running out of addresses while it has enough for every atom in the solar system
The bartender hands it a /32 - the smallest possible pour - because that's all anyone's been able to allocate since 2011
This joke perfectly captures the existential crisis of every network architect who's had to justify yet another NAT layer to management because someone in 1981 thought 4.3 billion addresses would be 'enough for everyone.' The IPv4 address space isn't just exhausted - it's been running on fumes since IANA handed out the last /8 blocks in 2011, and we're all still here playing Tetris with RFC1918 ranges and praying our CGNAT implementation doesn't become sentient and quit
Capacity planning for IPv4 now means creative VLSM and a prayer that your overlapping CIDRs never meet in a peering session
IPv4 exhaustion: the legacy tech debt no NAT bandage or CIDR crutch can fully cure - cheers to another decade of IPv6 promises
IPv4’s happy hour: one CIDR to aggregate the regrets, three layers of NAT to stay in denial, and yet another promise that IPv6 is coming “next quarter.”