Change the Default IP Address in Small Business Server

ID: Q194562

The information in this article applies to:
  • Microsoft BackOffice Small Business Server versions 4.0, 4.0a, 4.5

SUMMARY

Small Business Server comes preconfigured with a private address 10.0.0.2 and this is hard coded in the default configuration of various related services. This configuration is very suitable for most situations and should be left alone unless there is a justifiable reason to change it.

If the default IP address is changed without modifying the other services, error messages similar to the following examples may be displayed:

  • Event 7024
    Source: Service Control Manager (SCM)
    Type: Error
    Description: The Microsoft WinSock Proxy Service service terminated with service-specific error 213000.


  • Event 17
    Source: WinSockProxy (WSP)
    Type: Error
    Description: Incorrect network configuration. None of server's addresses are internal.


  • Event 1
    Source: WinSockProxy (WSP)
    Type: Error
    Description: WinSock Proxy Service failed to initialize. The data is the internal error code.
    Data: 00034008 (in Word or 08 40 03 00 in Byte)



MORE INFORMATION

If you must deviate from the default configuration, the following additional steps would have to be performed to make the necessary changes in various other services for them to continue to function properly.

IP Address Properties:

  1. Change the IP address and subnet mask to the new preferred IP and subnet.


  2. If this computer contains two or more network cards, the card connecting to the router should be configured with a default gateway (the router's)address. All others should be left blank.


  3. If it is not connected to a router, the Default Gateway option should be left blank.


  4. Both the primary and secondary WINS address fields should be populated with the new address of the internal card. The WINS addresses for the external card can be left blank. For additional information, click the article number below to view the article in the Microsoft Knowledge Base:


    5. Q185786 Recommended Practices for WINS
NOTE: Do not restart the computer if prompted at this time.

DHCP Changes to Be Made

Make the following changes in DHCP Manager:
  1. Select the default 10.0.0.0 scope and from the Scope menu, and then click Deactivate.


  2. Create a new scope for your new subnet by selecting Local Machine in the Servers list, and then click Create from the Scope menu.


  3. Specify a valid start and end IP addresses for the new scope along with the subnet mask.


  4. The exclusion range should be configured to reflect all addresses that are statically assigned or will need to be kept aside for future static assignment.


  5. Click OK.


  6. Click Yes, when prompted to activate the newly created scope. Commonly used options like 03 Router, 15 Domain Name, 44 WINS NBNS server, and 46 WINS/NBT Node Type can be defined at this time, if necessary.


    7. For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
    Q139904 How to Configure Your DHCP Server Scope

Proxy Changes to Be Made

Make the following Proxy changes:
  1. Click Start, click Programs, click Administrative Tools, click Microsoft Proxy Server, and then start Internet Service Manager.


  2. Double-click the SBS server name listed next to the WinSock or WebProxy service.


  3. In the Properties dialog box, click Edit Local Address (LAT).


  4. Reconstruct your Local Address Table (LAT) to include all internal IP addresses. This can be done by clicking Construct Table. All external IP addresses should be removed from the LAT.


  5. Click OK, to close the LAT Configuration dialog box.


  6. Click OK, to close the Properties dialog box.


  7. Change the IP address configured in the Mspclnt.ini file on the server located at c:\Smallbusiness\Clients\Ms\Proxy. NOTE: If Proxy has been updated to 2.0, the Mspclnt.ini file will be located in c:\Msp\clients.


  8. Modify the Client.inf in the c:\Smallbusiness\template directory to change the references to 10.0.0.2 to the server's new IP address.


  9. Restart the server for all changes to take effect.


Existing Clients Using DHCP

On existing clients using DHCP, make the following changes:
  1. On Windows 95 and Windows 98 clients, run Winipcfg.exe.


  2. Click Release, and then click Renew to get a new IP address and all configured options from the server. NOTE: For Windows NT clients, use the IPCONFIG /RELEASE command, followed by IPCONFIG /RENEW command at a command prompt.


  3. Update the Proxy server's IP address in WSP client in Control Panel.


  4. Click Update for the client to receive the latest changes to the LAT. Verify for each user on each SBS client that Internet Explorer's proxy settings are pointing to the SBS server's new IP address. To verify, right-click Internet Explorer on the desktop, click Properties, then click the Connections tab.


Additional query words: sbsfaqtop smallbiz

Keywords : SBS sbsfaqtop
Version : winnt:4.0,4.0a,4.5
Platform : winnt
Issue type : kbhowto


Last Reviewed: October 19, 1999
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