Teredo only used as last resort after IPv4 (Was: ipv6-ops Digest, Vol 25, Issue 9)

[Andrius Kazimieras Kasparavic(ius]

Well, you both confirmed pings, but what actually I was asking is - as
you have default and use IPv4 NAT and teredo-only IPv6, are you able to
connect to IPv6 server just by typing

www.ipv6.sixxs.net.


Andrius



Jeroen Massar wrote:
> [reminds himself that this is an operational list, reply-to set to
> users at ipv6.org which is more appropriate for end user questions's]
>
> nenad pudar wrote:
>   
>> I have vista now (torredo enabled by default) ,have patched lynksys
>> software with Earthlink patch ,it is working fine except that I cannot
>> browse since DNS is not working (reverse DNS seems to be OK)
>>
>>
>> C:\Users\Shone>tracert 2001:5a0:d00::5
>>
>> Tracing route to gin-nto-core2.ipv6.teleglobe.net
>> <http://gin-nto-core2.ipv6.teleglobe.net> [2001:5a0:d00::5]
>> over a maximum of 30 hops:
>>
>>   1  2282 ms    38 ms    41 ms  iad0-stf.hotnic.net
>> <http://iad0-stf.hotnic.net> [2001:4810:0:100::3]
>>     
>
> stf aka "Six To Four" aka 6to4, aka 2002::/16
>
> Clearly you are not using an Earthlink tunnel, which would go over their
> network, and most likely not Teredo either, though it might be that
> hotnic also runs a Teredo relay on their box, don't know if they do
> that, it just might. Most likely you are using 6to4 though.
>
> When Vista notices it can use 6to4 it uses that.
>
> You might want to check with "netsh int ipv6 show address" what options
> you have available. Or check http://www.sixxs.net/tools/ipv6calc/ which
> will display the details for you. (www.ipv6.sixxs.net also works of course)
>
>   
>> C:\Users\Shone>tracert www.ipv6.sixxs.net <http://www.ipv6.sixxs.net>
>> Unable to resolve target system name www.ipv6.sixxs.net
>> <http://www.ipv6.sixxs.net>.
>>
>>
>> Am I missing something here ?
>>     
>
> Yes cut and pasting correctly ;) You might want to try only
> "www.ipv6.sixxs.net" without the quotes. See below for an example.
>
>   
>> Is Vista using IPV6 for DNS transport trying to communicate with DNS
>> server ?
>>     
>
> Yes, but it has the option to fall back to IPv4 transport. Pure native
> IPv6 DNS is mostly impossible anyway as one need to be able to reach the
> IPv4-only rootservers. Of course having a IPv6 DNS caching resolver that
> can speak both IPv4/IPv6 alleviates that problem.
>
> Greets,
>  Jeroen
>
> --
> Using my sweet AYIYA tunnel:
>
> C:\Documents and Settings\jeroen>tracert www.sixxs.net
>
> Tracing route to noc.sixxs.net [2001:838:1:1:210:dcff:fe20:7c7c]
> over a maximum of 30 hops:
>
>   1    27 ms    29 ms    29 ms  gw-159.dub-01.ie.sixxs.net
> [2001:770:100:9e::1]
>
>   2    28 ms    29 ms    26 ms  blanch-sr1-vlan8.services.hea.net
> [2001:770:18:8
> ::1]
>   3    28 ms    29 ms    29 ms  po1-ar1-cwt.hea.net [2001:770:8:31::1]
>   4    28 ms    30 ms    28 ms  gige4-3-cr1-cwt.hea.net [2001:770:400:f::1]
>   5    30 ms    29 ms    29 ms  gige3-2-cr1-kp.hea.net [2001:770:400:11::2]
>   6    30 ms    29 ms    30 ms  gx-link.core.hea.net [2001:770:90:7::2]
>   7    48 ms    49 ms    49 ms  eth10-0-0.xr1.ams1.gblx.net
> [2001:7f8:1::a500:35
> 49:1]
>   8    49 ms    47 ms    50 ms  ams-ix.ipv6.concepts.nl
> [2001:7f8:1::a501:2871:1
> ]
>   9    52 ms   117 ms    50 ms  2001:838:0:10::2
>  10    49 ms    54 ms    51 ms  noc.sixxs.net
> [2001:838:1:1:210:dcff:fe20:7c7c]
>
>
> Trace complete.
>
>