Come Sunday, all U.S. Federal Govt. agencies must support IPv6 on outward facing Web sites

[Arturo Servin]

On 27/09/2012 13:28, Dan Wing wrote:
>> -----Original Message-----
>> From: ipv6-ops-bounces+dwing=cisco.com at lists.cluenet.de [mailto:ipv6-
>> ops-bounces+dwing=cisco.com at lists.cluenet.de] On Behalf Of Philipp Kern
>> Sent: Tuesday, September 25, 2012 12:49 PM
>> To: ipv6-ops at lists.cluenet.de
>> Subject: Re: Come Sunday, all U.S. Federal Govt. agencies must support
>> IPv6 on outward facing Web sites
>>
>> On Tue, Sep 25, 2012 at 12:45:57PM -0700, Dan Wing wrote:
>>> Happy Eyeballs are needed so dual-stack clients don't suffer problems
>>> attempting to connect to such misconfigurations.
>>
>> You mean the servers / firewalls should be fixed?
> 
> Of course the IPv6 servers, IPv6 load balancers, IPv6 firewalls,
> and IPv6 routing should be fixed, so that dual-stack clients
> can successfully connect using IPv6.  Advertising an AAAA that
> doesn't work is harmful to dual-stack clients that don't 
> implement a Happy Eyeballs algorithm -- those dual stack users 
> get unhappy and (rightfully) blame the problem on IPv6.
> 
> -d
> 

	Sometime ago somebody was complaining in a local operator list about
squid not able to switch to v4 when a v6 site with AAAA was not
responding (or at least that was his diagnostic). I have never tried to
validate it but it sounds that it may really happen.

/as