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Then my next question is: If they didn't leak a massive range, then why was it a big problem? I assume if they leaked a bad /24 it surely wouldn't be enough to
by nikisweeting 7y ago
Then my next question is: If they didn't leak a massive range, then why was it a big problem? I assume if they leaked a bad /24 it surely wouldn't be enough to take down Cloudflare and Google for everyone... no? Did they just leak tons of bad /24s or was it something else?
- kingbirdy 7y agoMy understanding is they had an optimizer that broke the /4 down in to /24s and those got announced
- nikisweeting 7y agoAha! That was the missing piece in my understanding, it all makes sense now! <3 You're the only person out of the ~5 people I asked who explained that bit.
- merb 7y agothe smaller the prefix I announce the more it gets spread. i.e. if I would announce the whole range via /32 it would probably go trough and all sites would be down. BUT under normal circumstances an upstream provider would filter it since it's sloppy to not do it.