A TYRO'S CONFIGURATION INFORMATION
Richard Draves
richdr@microsoft.com
Mon, 26 Jun 2000 11:32:54 -0700
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Well, everything looks OK in your configuration. I'm sorry to say that I
don't have a good idea why "ping 131.107.65.121" works well but "ping6
::131.107.65.121" is unreliable. My only guess is that something in your
network (maybe the firewall?) is handling encapsulated IPv6 packets in a
slow path and so they get a higher drop rate.
Rich
-----Original Message-----
From: sunym [mailto:sunym@NJUST0.njust.edu.cn]
Sent: Sunday, June 25, 2000 8:03 PM
To: Richard Draves
Cc: 6BONE@ISI.EDU
Subject: A TYRO'S CONFIGURATION INFORMATION
Please open the attachment,thank you!
----- Original Message -----
From: Richard <mailto:richdr@microsoft.com> Draves
To: 'sunym' <mailto:sunym@NJUST0.njust.edu.cn>
Cc: Brian Zill <mailto:bzill@microsoft.com>
Sent: Tuesday, June 06, 2000 10:06 PM
Subject: RE: A TYRO'S QUESTION
Let me clarify this. If you run
ping 131.107.65.121
then it works great.
But if you try
ping6 ::131.107.65.121
then you get some replies but most pings time out?
Can you send us
a) Information about your hardware configuration.
b) Information about your network topology? How are you connected to the
internet?
c) The output of "ipv6 if" and "ipv6 rt".
Thanks,
Rich
-----Original Message-----
From: sunym [mailto:sunym@NJUST0.njust.edu.cn]
Sent: Tuesday, June 06, 2000 4:27 AM
To: 6bone@ISI.EDU
Subject: A TYRO'S QUESTION
I AM A CHINESE STUDENT,NOW,I HAVE INSTALLED WINDOWS2000 AND BUILD A
IPV6 STACK .USING " IPV6 "COMMAND,I TRY TO CONNECT WITH
6TO4(::131.107.65.121).WHEN I HAVE FINISHED ALL THE COMMAND ,I TYPE
" PING6 ::131.107.65.121"
THE RESULT IS,TOO MUCH "REQUEST TIMMED OUT" AND SHOW REPLY ONCE IN A
WHILE,HOWEVER,IF I TYPE "PING 131.107.65.121" ,THE RESULT IS NORMAL.WHY?
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<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D146562818-26062000>Well,=20
everything looks OK in your configuration. I'm sorry to say that I =
don't have a=20
good idea why "ping 131.107.65.121" works well but "ping6 =
::131.107.65.121" is=20
unreliable. My only guess is that something in your network (maybe the=20
firewall?) is handling encapsulated IPv6 packets in a slow path and so =
they get=20
a higher drop rate.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D146562818-26062000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D146562818-26062000>Rich</SPAN></FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
<DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> sunym=20
[mailto:sunym@NJUST0.njust.edu.cn]<BR><B>Sent:</B> Sunday, June 25, =
2000 8:03=20
PM<BR><B>To:</B> Richard Draves<BR><B>Cc:</B> =
6BONE@ISI.EDU<BR><B>Subject:</B>=20
A TYRO'S CONFIGURATION INFORMATION<BR><BR></DIV></FONT>
<DIV><FONT size=3D2>
<DIV><FONT size=3D2>Please open the attachment,thank =
you!</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt =CB=CE=CC=E5; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:richdr@microsoft.com" =
title=3Drichdr@microsoft.com>Richard=20
Draves</A> </DIV>
<DIV style=3D"FONT: 10pt =CB=CE=CC=E5"><B>To:</B> <A=20
href=3D"mailto:sunym@NJUST0.njust.edu.cn"=20
title=3Dsunym@NJUST0.njust.edu.cn>'sunym'</A> </DIV>
<DIV style=3D"FONT: 10pt =CB=CE=CC=E5"><B>Cc:</B> <A =
href=3D"mailto:bzill@microsoft.com"=20
title=3Dbzill@microsoft.com>Brian Zill</A> </DIV>
<DIV style=3D"FONT: 10pt =CB=CE=CC=E5"><B>Sent:</B> Tuesday, June =
06, 2000 10:06=20
PM</DIV>
<DIV style=3D"FONT: 10pt =CB=CE=CC=E5"><B>Subject:</B> RE: A TYRO'S =
QUESTION</DIV>
<DIV><BR></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>Let me clarify this. If you =
run</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000> ping=20
131.107.65.121</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>then it works great.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>But if you try</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000> ping6=20
::131.107.65.121</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>then you get some replies but most pings =
time=20
out?</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>Can you send us</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D531190414-06062000>a)=20
Information about your hardware configuration.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D531190414-06062000>b)=20
Information about your network topology? How are you connected to =
the=20
internet?</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D531190414-06062000>c)=20
The output of "ipv6 if" and "ipv6 rt".</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>Thanks,</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D531190414-06062000>Rich</SPAN></FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
<DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> sunym=20
[mailto:sunym@NJUST0.njust.edu.cn]<BR><B>Sent:</B> Tuesday, June =
06, 2000=20
4:27 AM<BR><B>To:</B> 6bone@ISI.EDU<BR><B>Subject:</B> A TYRO'S=20
QUESTION<BR><BR></DIV></FONT>
<DIV><FONT face=3DTahoma size=3D2> I AM A =
CHINESE=20
STUDENT,NOW,I HAVE INSTALLED WINDOWS2000 AND BUILD A </FONT><FONT =
face=3DTahoma size=3D2>IPV6 STACK .USING " IPV6 "COMMAND,I TRY TO =
CONNECT WITH=20
6TO4(::131.107.65.121).WHEN I HAVE FINISHED ALL THE COMMAND ,I =
TYPE=20
</FONT></DIV>
<DIV><FONT face=3DTahoma size=3D2>" PING6 =
::131.107.65.121"</FONT></DIV>
<DIV><FONT face=3DTahoma size=3D2>THE RESULT IS,TOO MUCH "REQUEST =
TIMMED OUT"=20
AND SHOW REPLY ONCE IN A WHILE,HOWEVER,IF I TYPE "PING =
131.107.65.121"=20
,THE RESULT IS=20
NORMAL.WHY?</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></FONT></DIV></BLOCKQU=
OTE></BODY></HTML>
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