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Lower the ipv6FilterRange from 58 to 32 #319

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merged 1 commit into from May 3, 2023
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ChrisSchinnerl
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Noticing that lots of ISPs hand out full /64 prefixes to customers I did some research to see the size of prefixes that ISPs themselves have available.

Here are two examples for Google and Hetzner:
https://radar.qrator.net/as24940/ipv6-prefixes
https://radar.qrator.net/as15169/ipv6-prefixes

Considering that we used 54 bits and some providers have /32 or even lower prefixes to hand IPs out from, that leaves us with potentially millions of hosts on the same ISP.

So this PR lowers that number to 32 to only allow for 1 host per /32 range.

@peterjan peterjan marked this pull request as ready for review May 2, 2023 08:28
@peterjan peterjan merged commit af3e52c into master May 3, 2023
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@peterjan peterjan deleted the chris/update-ipv6-subnet branch May 3, 2023 09:21
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3 participants