IPv6 applications

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

IPv6 applications

The Windows Server 2003 family includes the following IPv6-enabled applications and components:

  • FTP client

    The File Transfer Protocol (FTP) client, Ftp.exe, can be used to establish FTP sessions with IPv4 and IPv6 FTP servers.

  • Telnet client

    The Telnet client, Telnet.exe, can be used to establish Telnet sessions with IPv4 and IPv6 Telnet servers.

  • Internet Explorer

    The new Internet extensions dynamic link library, Wininet.dll, enables Web browsers to access IPv6-enabled Web servers. For example, Wininet.dll is used by Microsoft Internet Explorer to make connections with a Web server to view Web pages. Internet Explorer uses IPv6 to download Web pages when the Domain Name System (DNS) query for the name of the Web server in the URL returns an IPv6 address.

    URLs that use the format for literal IPv6 addresses described in RFC 2732, "Format for Literal IPv6 Addresses in URLs," are not supported by the version of Internet Explorer provided with Windows 2000.

    For a list of IPv6-only Web sites, see the IPv6 Web site. Accessing IPv6-only Web sites assumes that you can connect to the IPv6 Internet. For more information about connecting to the IPv6 Internet, see Connecting to the IPv6 Internet.

Additionally, the Remote Procedure Call (RPC) components of Windows Server 2003 family are IPv6-enabled and the versions of Network Monitor provided with the Windows Server 2003 family, Windows 2000, and Systems Management Server 2.0 support the parsing of IPv6 headers.


  • Web addresses can change, so you might be unable to connect to the Web site or sites mentioned here.

  • Internet Explorer cannot browse IPv6 Web sites if it is configured to use a proxy server. When Internet Explorer is configured to use a proxy server, all name resolution requests for Web sites are forwarded to the proxy server. Until the proxy server is IPv6-enabled, proxy-based requests for local or remote IPv6 Web pages are unsuccessful. For information about how to configure Internet Explorer to operate without the use of a proxy server, see Internet Explorer Help.