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Can Windows Server 2008 R2 SMTP running on IIS 6.0 supports IPv6?

Unanswered Can Windows Server 2008 R2 SMTP running on IIS 6.0 supports IPv6?

  • Tuesday, January 22, 2013 6:54 AM
     
     
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    Understand that even if we were to install SMTP feature in Windows Server 2008 R2, the SMTP features will still runs on IIS 6.0.
    My Infra is moving to IPv6. Then, I saw this article from Microsoft TechNet - "How IIS 6.0 Supports IPv6 (IIS 6.0)"
    http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/1ecff3af-36c2-41b5-957a-8bcc6fac8abc.mspx?mfr=true

    In the article, it actually states under "Differences in IIS Functionality Between IPv4 and IPv6:
    File Transfer Protocol (FTP), Simple Mail Transfer Protocol (SMTP), and Network News Transfer Protocol (NNTP) services are not supported. IPv6 is supported only for the WWW service. The FTP, SMTP, and NNTP services do not have IPv6 support in IIS 6.0.

    So, my question is if we need SMTP Relay in my infra to run on Windows Server 2008 R2;and must run IPv6, How?! Or the article is referring that it will still work but there will be no support? Anyone can advise?
    Many Thanks
    Tan Chee

     

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  • Tuesday, January 22, 2013 2:41 PM
     
     
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    First, I doubt your infrastructure will be completely IPv6 with no IPv4 capabilities (of course what I doubt really doesn't matter).

    Next, IIS 6.0 is for Windows Server 2003 and has next to nothing to do with Windows Server 2008 R2 which uses IIS 7.5. Also, IPv6 support in Windows Server 2003 was never more than an experimental after-thought but is completely integrated into Windows Server 2008 R2.

    Thus that article is is completely not applicable to Windows Server 2008 R2 and IIS 7.5. You should ignore it. I have no definitive reference to state that SMTP services in Server 2008 R2 are supported on IPv6 but have no doubt that they are because as stated, IPv6 is a fully integrated and supported protocol stack in Server 2008 R2.

    Jason | http://blog.configmgrftw.com

     
  • Monday, January 28, 2013 7:56 AM
     
     
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    Hi Jason,

    Thanks for responding. So, what you mean is that SMTP feature on Windows Server 2008 R2 has nothing to do with IIS6.0 that was installed together when you add the SMTP feature? The IIS6.0 is only the console to manage the SMTP feature?

    So, when I turn on dual stack on the Windows Server 2008 R2 box with SMTP, there should be no impact?

    Sorry. Got very confused after reading too much what is available on the internet.

    Regards

    Tan Chee

     
  • Monday, January 28, 2013 2:06 PM
     
     
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    As mentioned, Server 2008 R2 does not use IIS6. The MMC snapin is just an admin console and not indicative of the IIS version, SMTP capabilities, or IPv6 capabilities of the OS.

    In general, yes to your question; however, there's a lot more to using and making IPv6 work that just enabling it as a protocol on the server.

    Jason | http://blog.configmgrftw.com