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   Good ${greeting_time}, Michiel!   
      
   10 Jan 2022 16:06:26, you wrote to Bj”rn Felten:   
      
    MvdV>>> Just one /64 would not be satisfactory to me.   
    BF>> Doesn't a /64 contain 2^64 addresses? Not enough? The entire IPv4   
    BF>> pool is 2^32...   
    MvdV> It is not that 2^64 addresses are not enough for all my devices,   
    MvdV> it is that a /64 can not be divided into subnets.   
      
   [Top-secret, burn before reading!]   
   It can.   
      
   And on my early experiments, when the /64 was the only block I had, that was   
   really great.   
      
    MvdV> That is the way it is designed. A /64 is the smallest subnet.   
      
   No. The /64 is the default subnet size, and people normally SHOULD NOT (as in   
   FTA-1006) split these blocks further, but that IS possible and NOT prohibited.   
      
    MvdV> I might have designed it different but I was not involved at   
    MvdV> the time.   
      
   IPv6 is not that strict as, for example, IPX was.   
      
    MvdV> So... if one wants/needs more than one subnet, one needs more than   
    MvdV> one /64. That is the way it is. It should be no problem, there is   
    MvdV> enough for everyone.   
      
   Here in Russia the de-facto standard is one MAC-based IPv6 address for the   
   outer-side link and /64 subnet routed via that address to the customer's LAN.   
   Additional subnets may be requested as well, but ISP admins say most people   
   don't request them.   
      
      
   --   
   Alexey V. Vissarionov aka Gremlin from Kremlin   
   gremlin.ru!gremlin; +vii-cmiii-ccxxix-lxxix-xlii   
      
   ... GPG: 8832FE9FA791F7968AC96E4E909DAC45EF3B1FA8 @ hkp://keys.gnupg.net   
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