Subject: Re: [alto] [Fwd: [dnsext] Re: I-DACTION:draft-vandergaast-edns-client-ip-00.txt]

From: Enrico Marocco <[email-masked]>
Date: Mon, 1 Feb 2010 10:11:46 +0100

The proposal is a simple extension for passing the querying client's IP
address to the authoritative DNS server that would then use such
information in the resolution process, most likely for directing the
client to the closest instance of the server it is trying to reach.

Enrico

Martin Stiemerling wrote:
> Enrico,
> 
> Isn't this more about localizing the client instead of load-balancing in the first place?
> 
>   Martin
> 
> [email-masked]
> 
> NEC Laboratories Europe - Network Research Division
> NEC Europe Limited | Registered Office: NEC House, 1 Victoria Road, London W3 6BL | Registered in England 2832014 
> 
>> -----Original Message-----
>> From: [email-masked] [mailto:[email-masked]] On Behalf Of
>> Enrico Marocco
>> Sent: Friday, January 29, 2010 12:14 PM
>> To: [email-masked]
>> Subject: [alto] [Fwd: [dnsext] Re: I-DACTION:draft-vandergaast-edns-
>> client-ip-00.txt]
>>
>> An interesting discussion about DNS-based load balancing -- a topic
>> that
>> hit this list a few times -- is going on on the DNSEXT WG.
>>
>> Anyone interested may join the WG list by sending an email with the
>> command "subscribe" in a single line in the message body to
>> [email-masked] (just clicking on
>> mailto:[email-masked]?body=subscribe should do the
>> magic).
>>
>> Web archives are available at http://ops.ietf.org/lists/namedroppers/
>>
>> Enrico
>>
>> -------- Original Message --------
>> Subject: [dnsext] Re: I-D ACTION:draft-vandergaast-edns-client-ip-
>> 00.txt
>> Date: Thu, 28 Jan 2010 00:56:45 +0100
>> From: Wilmer van der Gaast <[email-masked]>
>> To: [email-masked] <[email-masked]>
>>
>> Hello everyone,
>>
>> I spoke to Olafur about this idea in Hiroshima last year. I'm afraid
>> the deadline for Anaheim already passed, but we hope we can discuss it
>> on-line in the meantime and decide if it should become a WG item in
>> Maastricht later this year.
>>
>> To summarize the I-D: It specifies an EDNS0 option that carries IP
>> address information (by default only the first 24 bits to preserve
>> privacy) of the user that triggered a DNS resolution. This should
>> allow authoritative nameservers that give geo-targeted responses to be
>> more accurate, even in cases where the resolver and its users aren't
>> close to each other. To preserve the ability to cache such responses
>> efficiently, the option in the response can indicate which exact
>> subnet it should be cached for.
>>
>> Comments are more than welcome.
>>
>>
>> Regards,
>>
>> Wilmer van der Gaast
>> Carlo Contavalli
>> Google
>>
>> Sean Leach
>> Darryl Rodden
>> Neustar/UltraDNS
>>
>>
>> >From i-d-announce:
>>> A New Internet-Draft is available from the on-line Internet-Drafts
>>> directories.
>>>
>>>
>>> 	Title		: Client IP information in DNS requests
>>> 	Author(s)	: C. Contavalli, W. van der Gaast, S. Leach, D.
>> Rodden
>>> 	Filename	: draft-vandergaast-edns-client-ip-00.txt
>>> 	Pages		: 20
>>> 	Date		: 2010-1-26
>>>
>>>    This draft defines an EDNS0 extension to allow Authoritative
>>>    Nameservers to return varying replies based upon the network
>> address
>>>    of the client that initiated the query rather than of the client's
>>>    Recursive Resolver.
>>>
>>> A URL for this Internet-Draft is:
>>> http://www.ietf.org/internet-drafts/draft-vandergaast-edns-client-ip-
>> 00.txt