Microsoft KB Archive/262981

= Internet Explorer Uses Proxy Server for Local IP Address Even if the &quot;Bypass Proxy Server for Local Addresses&quot; Option Is Turned On =

Article ID: 262981

Article Last Modified on 6/5/2007

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APPLIES TO

 Microsoft Internet Explorer 5.01 Microsoft Internet Explorer 5.01, when used with:  Microsoft Windows 98 Second Edition

 Microsoft Windows 95

 Microsoft Windows 2000 Standard Edition

 </li></ul> </li> Microsoft Internet Explorer 6.0, when used with:  Microsoft Windows 98 Standard Edition</li></ul>

 Microsoft Windows 98 Second Edition</li></ul>

 Microsoft Windows Millennium Edition</li></ul>

 Microsoft Windows XP Professional</li></ul>

 Microsoft Windows NT 4.0 Service Pack 6a</li></ul>

 Microsoft Windows 2000 Standard Edition</li></ul>

 <li>Microsoft Windows Server 2003, Standard Edition (32-bit x86)</li></ul> </li> <li>Windows Internet Explorer 7 for Windows XP</li> <li>Windows Internet Explorer 7 for Windows Server 2003</li> <li>Windows Internet Explorer 7 for Windows Server 2003 IA64</li></ul>

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This article was previously published under Q262981

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SYMPTOMS
When you connect to a Web server using the Internet Protocol (IP) address or Fully Qualified Domain Name (FQDN) on the local network, Microsoft Internet Explorer or Windows Internet Explorer connects through an assigned proxy server even if the Bypass proxy server for local addresses option is turned on.

However, if you connect to a Web server using the host name (for example, http:// ) instead of the IP address (for example, http://10.0.0.1) or FQDN (for example, http:// . .com), the proxy server is bypassed and Internet Explorer connects directly to the server.

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CAUSE
By default, only host names are checked when the Bypass proxy server for local addresses option is turned on.

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RESOLUTION
To bypass a range of IP addresses or a specific domain name, specify the addresses in the proxy exception list:
 * 1) In Internet Explorer, on the Tools menu, click Internet Options.
 * 2) On the Connections tab, click LAN Settings.
 * 3) Click Advanced, and type the appropriate information in the Exceptions area.

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STATUS
This behavior is by design.

Additional query words: hostname hostnames

Keywords: kbenv kbprb KB262981

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