Unable to download patches from download.microsoft.com when it is replaced with IP address (IP address is obtained via nslookup)

Question

Hi all, i'm trying to set up a proxy server to allow pc in our internal network to download patches from download.microsoft.com. The proxy server is configured to translate URLs to IP address, e.g. www.microsoft.com to 207.46.192.254 and so on. Everything worked fine (from www.microsoft.com/technet/security/current.aspx) until the download part. If we replace download.microsoft.com with the nslookup IP address, we get a HTTP 400 error. For e.g., we can download a specific patch using http://download.microsoft.com/download/E/9/1/E9177048-A278-476F-8A1A-81C68AC24E7C/WindowsServer2003-KB967723-x86-ENU.exe , but when we use http:// 124.155.222.50 /download/E/9/1/E9177048-A278-476F-8A1A-81C68AC24E7C/WindowsServer2003-KB967723-x86-ENU.exe , we get a HTTP 400 error.

I think the problem lies with IP address for download.microsoft.com. The IP addresses that we found for download.microsoft.com are 124.155.222.50 and 124.155.222.65 (via nslookup). Can anyone enlighten me please?
Thanks so much in advance!

PS: I'm sorry if I posted on the wrong forum.

Answer 1

can anyone please help?