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Re: [Asrg] Another dnsbl draft, now standards flavored

2008-07-28 15:41:52
On Sun, Jul 20, 2008 at 10:39:12PM -0000, John Levine wrote

I don't see that in the IPv6 documents, and in any event, this draft
is about DNSBLs, not IPv6 theology.

  It's not about theology, it's about following the rules, just like
IPV4 DNSBLs have to follow the rules of IPV4.  A few thoughts...

  - IPV4 will be around for a while yet, so please do a proper job on it

  - IPV6 will be around after IPV4 disappears, so it's even more important
    to do the IPV6 implementation right
    - in particular, IPV4 DNSxLs use the entire "localhost" address
      space, all 24 bits of it (127.0.0.0/8).
    - do *NOT* impose an IPV4 limit on IPV6.  IPV6 has a "localhost"
      address space of 121 bits (fc00::/7).  Don't be afraid to use it

  - DNSBL servers should not try to pull a "Clippy" in terms of "being
    helpful".
    - If a server gets a query via IPV4, it should return an A record
    - If a server gets a query via IPV6, it should return an AAAA record

  - left hand, say "Hello" to right hand.  This is not a joke.  I
    suggest that you join IETF's ipng mailing list, and run your draft
    past them.
    - these people, better than anybody else, can point out any problems
      with your IPV6 implementation
    - you're not an ordinary end-user; you're developing a standards
      track RFC that should count as "protocol development"
    - the ipng may be in a position to reserve a block of addresses
      *JUST FOR DNSxLs*
    - there may already be something buried deep in the specs allocating
      a block of address just for stuff like this
    - it would look really, really bad if two IETF groups came out with
      contradictory specs

  The ipng list instructions are at...
http://playground.sun.com/pub/ipng/html/instructions.html

-- 
Walter Dnes <waltdnes(_at_)waltdnes(_dot_)org>
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