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Could anybody recommend a book for learning IPv6? I know there are plenty out there, but what are the best, HN's recommendations? I get the general concepts and
by dpedu 3y ago
Could anybody recommend a book for learning IPv6? I know there are plenty out there, but what are the best, HN's recommendations? I get the general concepts and I use it on personal systems but I've spent too long just skirting by. It's time for a deep dive. I think the best type of book to learn from would have a mix of textbook knowledge and practical examples/demos.
- unethical_ban 3y agoThe CCENT and CCNA certification books have chapters dedicated to IPv6 and I think they do a good job talking about it. edit: Some little tips about it. * The smallest subnet should be /64. Anyone making a smaller subnet than that is doing it wrong (looking at you, every ISP that assigns me an address) * Subnets should be created in four-bit chunks. You should always make /64, /60, /56, etc. for readability. That's because 4 bits make up one hex character in the address. * If you want to have private (non-internet-routable) IPv6 space, create a ULA. https://www.unique-local-ipv6.com/ https://www.unique-local-ipv6.com/ Imagine never having to worry about address overlap with VPNs or routing between two internal networks.
- infensus 3y agoThis a thing which boggles my mind. Does this mean everyone gets /64 addresses to circumvent IP bans?
- unethical_ban 3y agoIPv6 banning would likely happen at that subnet level, not individually.
- infensus 3y agoAh right. But it will be a bit problematic, since the subnet size may vary between different ISPs, no?
- unethical_ban 3y agoI don't know how things are being done by global consumer ISPs... Whether they are handing out /56 or /60 commonly. Even then, you're talking about dealing with a few hundred /64 sized nets to potentially block, rather than the quadrillions initially feared.
- Dagger2 3y agoThe general approach is to gradually expand the size of a block to cover more subnets if needed, e.g. three /64s banned from the same /60 -> ban the /60, and three /60s banned from a /56 -> ban the /56, or whatever thresholds work. You already need to do this in v4 to cover people with dynamic IPs anyway, so it's not a new concept.
- supertrope 3y agoWhile your device will rotate privacy addresses within a /64, online service operators can ban your /64.
- xcrunner529 3y agoDoesn’t ULA have an issue with the priority of IP addresses, though?
- unethical_ban 3y agoNot sure what you mean.
- xcrunner529 3y agoLike native from ISP will be preferred over ULA.
- unethical_ban 3y agoOh, not sure. I know that my ISP only gives my WAN router a single address (/128) so a private local network is a requirement for me.
- xcrunner529 3y agoReally? Can’t imagine how that is possible it doesn’t fit the standard and I’d think it’d get berated. Are you sure they don’t give you a /64 or that you can request one