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RE: [moonv6] RE: Vista DNS behavior - Re: [nav6tf] IPv6 news - weekly summary

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From: Latif Ladid \(\ (latif.ladid@village.uunet.lu)
Date: 09/15/06


How about users and countries or even continents sitting behind NATs?  

_____Latif

From: owner-moonv6@io.iol.unh.edu [mailto:owner-moonv6@io.iol.unh.edu] On Behalf Of CPT Alexander R. Tambascica, Armor Sent: 15 September 2006 12:39
To: Durand, Alain
Cc: cmitch@windows.microsoft.com; green@commandinformation.com; bill@wjcerveny.com; joya@subudhi.com; nav6tf@ipv6forum.com; moonv6@iol.unh.edu; McGuerty, Jay S.; Ben Eater Subject: Re: [moonv6] RE: Vista DNS behavior - Re: [nav6tf] IPv6 news - weekly summary

Alain,

Why are you using Teredo to begin with? With all it's security vulnerabilities and issues
there are far better and safer solutions to use. My team was aware many of these DNS
issue over 8 months ago with vista but according to Microsoft they "should" be fixed in RC1.
But we haven't done anything with Teredo because that is one of the first things we disabled.
If you need a tunnel broker I would recommend using Hexago's free tunnel broker over
teredo which will also remove DNS issues that is seen with Vista because the tunnel broker
does the heavy lifting.

R/
CPT Tambascia

Durand, Alain wrote:

moonv6 post from "Durand, Alain" <mailto:Alain_Durand@cable.comcast.com>
<Alain_Durand@cable.comcast.com>

Could someone clarify how this reconcile with teredo automatic IPv6 connectivity establishment?

From: owner-moonv6@io.iol.unh.edu <mailto:owner-moonv6@io.iol.unh.edu>
<owner-moonv6@io.iol.unh.edu>

To: Dave Green <mailto:green@commandinformation.com>
<green@commandinformation.com>; Bill Cerveny <mailto:bill@wjcerveny.com>
<bill@wjcerveny.com>; Joya Subudhi <mailto:joya@subudhi.com>
<joya@subudhi.com>; nav6tf@ipv6forum.com <mailto:nav6tf@ipv6forum.com>
<nav6tf@ipv6forum.com>; moonv6@iol.unh.edu <mailto:moonv6@iol.unh.edu>
<moonv6@iol.unh.edu>

Sent: Thu Sep 14 18:55:43 2006

Subject: [moonv6] RE: Vista DNS behavior - Re: [nav6tf] IPv6 news - weekly summary

moonv6 post from Chris Mitchell <mailto:cmitch@windows.microsoft.com>
<cmitch@windows.microsoft.com>

Thanks for testing and confirming this Dave. This is exactly what we

specified as the expected behavior. If anyone has feedback that this

isn't right please let us know.

Thanks,

Chris Mitchell

Group Program Manager

Windows Networking and Devices

-----Original Message-----

From: owner-nav6tf@ipv6forum.com [mailto:owner-nav6tf@ipv6forum.com] On

Behalf Of Dave Green

Sent: Thursday, September 14, 2006 2:44 PM

To: Bill Cerveny; Joya Subudhi; nav6tf@ipv6forum.com; moonv6@iol.unh.edu

Subject: RE: Vista DNS behavior - Re: [nav6tf] IPv6 news - weekly

summary

Bill, et all:

We've been aware of this behavior on XP, but had not checked for it in

Vista. Since we run a fully dual-stacked environment this behavior

wasn't causing us a problem. However, if it was still present it could

cause long lags on IPv4-only environments so I tested this today on the

Vista Pre-RC1 Build 5536 we are pilot testing for production. To test

this, I used an IPv6-capable packet sniffer to capture and decode all

DNS queries with Vista on our main dual stacked environment, and on the

v4-only and IPv6-only environments we run for application testing. This

is what I found:

-On a native IPv6-dual-stacked connection Vista Generated 2 DNS requests

for each record and I was able to reach our IPv6-only content sites.

-In our IPv4-only test environment, I only saw requests for A records

and requests to our IPv6 only content sites failed.

-In our IPv6-only environment, I only saw requests for AAAA records and

our IPv6 content sites worked fine.

I believe that this behavior is exactly what we wanted Vista to do.  

David Green | VP of R&D | Command Information

13655 Dulles Technology Drive, Suite 100 | Herndon, VA 20171

O: 703.561.5937 | M: 703.899.9663 | green@commandinformation.com  

-----Original Message-----

From: owner-nav6tf@ipv6forum.com [mailto:owner-nav6tf@ipv6forum.com] On

Behalf Of Bill Cerveny

Sent: Monday, September 11, 2006 6:53 PM

To: Joya Subudhi; nav6tf@ipv6forum.com; moonv6@iol.unh.edu

Subject: Vista DNS behavior - Re: [nav6tf] IPv6 news - weekly summary

Does anyone have any experience with Vista beta?

The two articles below about Vista and DNS melting the Internet suggest

that Vista will always make two DNS requests; one for the A record and

the other for the AAAA record. While I might expect this to occur if

Vista thinks it is connected to an operational IPv6 network, will Vista

still do this if it doesn't have a globally routable IPv6 address or any

other indication that it is connected to an IPv6-enabled network?

Bill Cerveny

On Mon, 11 Sep 2006 10:38:21 -0400, "Joya Subudhi"
<mailto:joya@subudhi.com> <joya@subudhi.com>

said:   

IPv6 news - weekly summary

Main News:

Plan for cyberspace available in near future

http://www.ipv6tf.org/news/newsroom.php?id=2237

Other News:

IPv6: The future is now

http://www.ipv6tf.org/news/newsroom.php?id=2236

Security:

Corporate and Products:

Vista's role in Imminent Net Death overstated

http://www.ipv6tf.org/news/newsroom.php?id=2240

Command Information Appoints Greg Sloan to Lead Commercial Sector

Business Development

http://www.ipv6tf.org/news/newsroom.php?id=2239

Will Vista stall Net traffic?

http://www.ipv6tf.org/news/newsroom.php?id=2238

Using the Network Diagnostic Tester

http://www.ipv6tf.org/news/newsroom.php?id=2235         

-- 

CPT Alexander R. Tambascia, Armor (FA24A)

MSCIS, BS, MCSE+Security, MCSA+Security, Security+, DCSE, BCIP, CCA, CEH,
IASO, VAI

Computer Scientist 



"Nothing is impossible only improbable"
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