nanog mailing list archives

Re: huh


From: "Tim Devries" <zsolutions () cogeco ca>
Date: Tue, 15 Jan 2002 15:49:24 -0600



----- Original Message -----
From: "Sean Donelan" <sean () donelan com>
To: "Steven M. Bellovin" <smb () research att com>
Cc: "David G. Andersen" <dga () lcs mit edu>; "Ian A Finlay"
<iaf () andrew cmu edu>; <nanog () merit edu>
Sent: Tuesday, January 15, 2002 2:27 PM
Subject: Re: huh





On Tue, 15 Jan 2002, Steven M. Bellovin wrote:
 Um, it's firewalled?  Most of microsoft isn't traceroutable or
pingable.

Yup:

b129$ ipsrvtrace -p 80 windowsupdate.microsoft.com
[...]
15      65.195.34.226   65.195.34.226   155.934 156.415 156.973
16      iusbsecurc1202-ge-6-0.msft.net  207.68.128.66   13.109  13.598
14.142
17      -       -       *       *       *
18      207.68.131.27   207.68.131.27   13.988  14.373  *

Microsoft has been moving/changing Windowsupdate.microsoft.com for
the last week or so.  The problems have been covered extensively
in other forums.

Although microsoft technicians have messed up access filters on its
routers in the past, I believe this is just them blocking some packets
used by the standard traceroute.  If you are having other problems
with windowsupdate, I think they are unrelated to traceroute.

Ok, well this is good to know.  Although it still doesn't explain why my
firewall is reporting DNS UDP/TCP probes from windowupdate.com on a regular
basis.

-Tim





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