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<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>Hi,</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;we have DUAL STACK +DNSv6 =
client
support in UE (Mobile handset) now we are planning for the =
implementation </span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;Of Automatic Tunneling =
feature in
UE in order to support some initial IPV6 transition =
scenerios.</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;According to =
</span></font><font
size=2 color=blue face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;
color:blue'>RFC 4215 ,If we need to support tunneling feature in UE than =
</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;
&nbsp;-</span></font><font size=2 color=blue face=Wingdings><span
style='font-size:10.0pt;font-family:Wingdings;color:blue'>&agrave;</spa=
n></font><font
size=2 color=blue face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;
color:blue'> host-to-router (automatic)&nbsp;&nbsp; tunneling mechanism =
</span></font><b><font
size=2 color=red face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;
color:red;font-weight:bold'>can </span></font></b><font size=2 =
color=blue
face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;color:blue'>be a
good fit.&nbsp; </span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;
-</span></font><font size=2 color=blue face=Wingdings><span =
style='font-size:
10.0pt;font-family:Wingdings;color:blue'>&agrave;</span></font><font =
size=2
color=blue face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;
color:blue'> but there is no </span></font><b><font size=2 color=red
face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;color:red;
font-weight:bold'>consensus on right approach</span></font></b><font =
size=2
color=blue face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;
color:blue'> </span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp; &nbsp;Currently =
ISATAP,</span></font><font
size=2 color=blue face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;
color:blue'> 6to4 and Teredo are automatic tunneling technology. Only =
Teredo
can work over the NAT. ISATAP is implemented in </span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;&nbsp; Microsoft Windows XP =
Because
of a patent claim, early implementations were withdrawn from both KAME =
(*BSD) and
USAGI (Linux). &nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;&nbsp; &nbsp;ISATAP also =
carries
the same security risks as 6over4: </span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal style='text-indent:6.0pt'><font size=2 =
color=blue
face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;color:blue'>Please
let us know which tunneling approach will be most recommended for =
&nbsp;3GPP Mobile host.</span></font></p>
<p class=MsoNormal style='text-indent:6.0pt'><font size=2 =
color=blue
face=Tahoma><span =
style='font-size:10.0pt;font-family:Tahoma;color:blue'>I am
unable to find any relevant RFC&#8217;s and DRAFT other than RFC =
4215.</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Tahoma><span =
style='font-size:
10.0pt;font-family:Tahoma;color:blue'>&nbsp;</span></font></p>
<p class=MsoNormal><font size=5 color=maroon face="Monotype =
Corsiva"><span
style='font-size:18.0pt;font-family:"Monotype =
Corsiva";color:maroon'>Vishal
Gupta</span></font><font color=blue><span style='color:blue'> =
</span></font></p>
<p><i><font size=2 color=navy face=Verdana><span =
style='font-size:10.0pt;
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