Changing from Dual Nic to Single Nic

Discussion in 'Windows Small Business Server' started by John, May 12, 2005.

  1. John

    John Guest

    I have run into a situation that the only solution is to go to a single nic
    on my SBS dual nic box. It is a long story to explain why so my question
    is: has anyone reran the wizard chosen single NIC and it worked just fine?
    Any tips or things to look for. This server is behind a hardware firewall.

    Thanks


    John
     
    John, May 12, 2005
    #1
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  2. may I ask how you know that switching to a single NIC will fix your problem?
    also, is this SBS2003 Std or Premium?
     
    Kevin Weilbacher [SBS-MVP], May 12, 2005
    #2
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  3. John

    Jerry zhao Guest

    Hi John,

    Thanks for your time.

    Based on my knowledge, we can switch the two NICs scenario to the single
    NIC scenario although it is not recommended.

    Theoretically speaking, we can disable the second NIC, re-run the CEICW to
    configure network setting again. However, we should renew the IP address on
    the client PCs. To do so, we can run "ipconfig /release", "ipconfig /renew"
    on the client PCs,

    Also, if you have set the port mapping/ forwarding before, you should
    configure the mapping/ forwarding again after you switch to the NIC
    scenario.

    It's recommended to use 2 NICs. This is a best practice. When you install
    two NICs in your server you split your setup in two different networks
    which is more secure. If there are any network configurations outside of
    the external NIC, there will be no configuration change required to the
    internal network. You just change your router settings to reflect the
    outside configurations change.

    The second NIC offers an additional layer of security. Your primary
    firewall is RRAS Basic Firewall while your hardware router/firewall offers
    a secondary firewall. With a single NIC you rely totally on the router
    capability for security.

    In addition, if ISA is in Integrated or Firewall mode, you must re-install
    ISA before re-enabling the 2nd NIC.

    If you have any questions please do not hesitate to let me know. I am glad
    to be of assistance.

    Best regards,

    Jerry Zhao (MSFT)

    Microsoft CSS Online Newsgroup Support

    Get Secure! - www.microsoft.com/security

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    Jerry zhao, May 12, 2005
    #3
  4. John

    John Guest

    Which NIC do you suggest I disable? WAN or LAN?

    Thanks


    John
     
    John, May 12, 2005
    #4
  5. John

    Jerry zhao Guest

    Hi John,

    Thanks for the update.

    Actually, it does not matter we disable which NIC.

    If you have any questions please do not hesitate to let me know.

    Best regards,

    Jerry Zhao (MSFT)

    Microsoft CSS Online Newsgroup Support

    Get Secure! - www.microsoft.com/security

    =====================================================
    When responding to posts, please "Reply to Group" via your newsreader so
    that others may learn and benefit from your issue.
    =====================================================
    This posting is provided "AS IS" with no warranties, and confers no rights.
     
    Jerry zhao, May 13, 2005
    #5
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