On Fri, 16 Apr 2004, Iljitsch van Beijnum wrote: > Ok, this is good, but: > > > Note that IPv6 DNS resolver discovery is not required for dual-stack > > nodes in dual-stack networks as IPv6 DNS records can be queried over > > IPv4 as well as IPv6. > > While this text is technically correct, some people may take it to mean > that it's not necessary to implement DNS discovery, configuration and > resolving over IPv6. How about: > > Note that in the absense of DNS resolvers reachable over IPv6, either > due to failed discovery and/or lack of configuration, DNS resolvers > reachable over IPv4 may be used, if available.
This is exactly the intent. As long as you're dual-stack, there is no hurry to worry which mechanism you start use to discover v6 resolvers. This is another obviously bogus so-called "show-stopper" (compare to the request of waiting for root DNS servers to be dual-stack; another unnecessity). These are religions/policitical reasons only, and I'd like to keep that part of the debate out of here. Therefore I'm reluctant to change the tone of the text. > BTW: how does a dual-stack host know whether to use v4 or v6 resolvers? Depending on the ordering of resolv.conf. The more specific question is how does the dual-stack host know which to use when it runs DHCPv4 and DHCPv6(-lite or full), and both give you DNS info, is to being considered by DHC WG under "dual-stack DHCP issues". -- Pekka Savola "You each name yourselves king, yet the Netcore Oy kingdom bleeds." Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings . dnsop resources:_____________________________________________________ web user interface: http://darkwing.uoregon.edu/~llynch/dnsop.html mhonarc archive: http://darkwing.uoregon.edu/~llynch/dnsop/index.html
