IPv6 issues

[Kvetch]

Mark, thanks so much for looking into this. What versions of BIND were 
affected with the timeout problem, 9.2.5 thru 9.3.1 or versions below 9.2.5? 
I am running 9.3.0 so I want to make sure I am not effected. 
If these user's ISP are running a version of BIND that has this problem 
would they have issues connecting to all sites or just sites that who's DNS 
server is running BIND 9? 
Is this the problem you were refering to http://v6fix.net . I could not find 
any info on the isc.org <http://isc.org> site regarding this problem would 
you know of any other references regarding the issue?

Do you know of a way to probe (scan) a DNS server to determine what version 
of BIND they are running? I thought I might be able to do it with netcat but 
I am not getting any readable responses back when I test on our DNS servers.

Thanks so much,
Nick

On 8/30/05, Mark Andrews <Mark_Andrews at isc.org> wrote:
> 
> 
> 
> I suspect it is a bit of both. You have TTLs of 5 minutes
> which is causing the caches to continually go back to the
> parent zones. They most probably are running old versions
> of BIND 9 that have to timeout on the IPv6 addresses of the
> COM/NET servers.
> 
> The timeout problem is fixed (except for one OS and we are
> working with the OS manufacture to address the problem, the IP
> stack needs changes made to it) as of BIND 9.2.5 / BIND 9.3.1.
> 
> Mark
> 
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
>