I am DNS-naive and my comment about "in theory" may well be wrong, either in theory or in practice. So, does the choice of DNS server really make a difference or can a host simply choose from the union of all of the lists of DNS servers it receives?
- Ralph
At 06:19 AM 3/19/2003 +0100, Erik Nordmark wrote:
> If we have statefull address autoconfig & stateful address autoconfig, I
> think having an additional mechanism for getting DNS server addresses is not
> a bad thing. At the transport layer, we have UDP, UDP-lite, DCCP, TCP,
> SCTP ... to transfer packets. Having multiple ways to do something is a
> reasonable solution.
Two issues with multiple methods to configure the same thing that hasn't been brought up are: - potential impact on time to discover Since each router advertisement doesn't need to contain all options will a host need to listen for RAs for some time before it decides it to DHCPv6 to find the info? - conflicting information A host might use DHCPv6 for other reasons/other information. What should it do if the RAs and the DHCPv6 reply contains different DNS information? What if different RAs received on the same interface contain different DNS information?
Erik
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