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Windows 7: W7 update download servers


06 Oct 2012   #1

Win 7 x64
 
 
W7 update download servers

Does Microsoft use non-Microsoft ip addresses for Update *downloads*?

Example: My machine will initiate an update check upon connection to the internet to MS ips like

65.54.161.12
65.55.27.220
Both hosts "www.update.microsoft.com."

Then connections to hosts from supposedly non-MS servers ips -- checked with arin.net or robtex

4.23.40.126 (Level 3 comm)
23.62.236.89 (Akamai)
165.254.27.97 (NTT America)
165.254.27.112 (NTT America)
All "download.windowsupdate.com"

The last two ips are in an ip range (165.254.27.0-255) that seemed to deliver eTags and ad content that seemed to span across many sites while surfing -- this is what initially brought this to my attention.

Edit: the GET in the connections to download host is always :
192.168.xxx.xxx 4.23.40.126 HTTP 228 GET /v9/1/windowsupdate/redir/muv4wuredir.cab?1210060536 HTTP/1.1 49191 80 download.windowsupdate.com

Is this expected behavior?

Thanks.


My System SpecsSystem Spec
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 W7 update download servers




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