The following describes how to configure a Small Business Server (SBS) 2000-based server that has a single network adapter to use a router to access the Internet. You can use the procedure that is described in this article to resolve the following issues:

• The server restarts slowly during the Configuring Network Connections stage.
• You cannot access the Internet.
• You cannot log on to the domain. First, ensure there is no message concerning the establishment of trust
• Exchange Server cannot send or receive e-mail.
• An event ID 5775 DNS deregistration error is logged.

There are a separate procedures for configuring a server that has two network adapters to connect to a router for Internet access and also for configuring a server that has a dial-up connection to access the Internet.

In the configuration that is described here the DNS server is the pivotal point for Active Directory and local area network (LAN) connectivity. Active Directory clients (including the server and its services) use DNS to locate domain controllers for administration and logon purposes. You must have a DNS server installed and configured for Active Directory for the associated client software to function correctly.

Because of the combination of server programs, the requirements for compatibility, and the many ways these programs can be configured, you must run SBS Internet Connection Wizard on the server.
Internet Connection Wizard supports connections to virtually any ISP, regardless of the connection type-broadband, router, Integrated Services Digital Network (ISDN), or analog modem. You can use Internet Connection Wizard to configure Windows 2000 networking for LAN and wide area network (WAN) connections, Microsoft Exchange 2000 Server for internal and Internet e-mail, and Microsoft Internet Security and Acceleration (ISA) Server.
It is also necessary to gather certain configuration information before using the ICW.

The information supplied here assumes that the SBS-based server has at least one network adapter that has a statically assigned Internet Protocol (IP) address. Do not configure the server as a Dynamic Host Configuration Protocol (DHCP) client.
If you use a router for Internet access, the IP address on the router and the IP address on the server must be unique values on the same subnet. By default, the SBS network adapter is assigned an IP address of 192.168.16.2 and a subnet address of 255.255.255.0. This address is a private network address and on a class C subnet.
By default, most routers are not configured to work in this subnet. Some routers are preconfigured to use an IP address of 192.168.0.1 and a subnet mask of 255.255.255.0 (this address is also a private IP address in a class C subnet). You may have to change either the routers, the servers, or both IP address so that both addresses are on the same subnet.
The following configuration is an example of a working IP scheme for the SBS-based server and router:

IP address for SBS-based server: 192.168.16.2
Default gateway for SBS-based server: 192.168.16.1
Internal IP address for router: 192.168.16.1
Internal and SBS-based server subnet mask for the router: 255.255.255.0

SBS-based server IP address: 192.168.X.Z
SBS-based server default gateway: 192.168.X.Y
Internal IP address of router: 192.168.X.Y
Internal IP address of router: 192.168.X.Y
Internal subnet mask of router : 255.255.255.0

The following procedure describes how to configure the SBS-based server for internal and external connectivity. In this configuration, the server that is running ISA Server is not being used as a firewall; it is used only as a caching server. You can remove ISA Server from the server.
To configure the SBS-based server for internal and external connectivity:

1. Verify DNS settings for the local area connection:
   1. Click Start, click Settings, and then click Network and Dial-up Connections.
   2. Right-click Local Area Connection, and then click Properties.
   3. Right-click Internet Protocol (TCP/IP), and then click Properties.

      Confirm that the SBS installation has the following settings:

      IP Address
      

      IP Address: 192.168.X.Z
      Subnet Mask: 255.255.255.0
      Default Gateway: 192.168.X.Y

      DNS Server address
      

      Preferred DNS server: 192.168.X.Z
      Alternate DNS server: no settings

   IMPORTANT: Use the IP address for the server's network adapter for the preferred DNS server on the local area connection.

2. Set the binding order:
   1. Click Start, click Settings, and then click Network and Dial-up Connections.
   2. On the Advanced menu, click Advanced Settings.
   3. View the local area connections and remote access connections in the Connections box.
   4. Use the arrow buttons to put the connections in the following order:
      1. Local area connection for the network adapter
      2. Remote access connections
   5. Click OK.
   6. Close the Network and Dial-up Connections window.
   7. If you are prompted to do so, restart the server.
3. Run the Internet Connection Wizard

   Before starting, you may wish to inspect the flow-chart associated with the ICW procedure.

   The Small Business Server Internet Connection Wizard (ICW) can be started from the Small Business Server Console in a couple of ways.

   • ICW can be called from the To Do List or from Manage Internet Access under More Tasks.
   • If Internet connectivity changes need to be made after the wizard has been run, select Configure Internet Hardware from the Manage Internet Access page of the Small Business Server Console, and then make any changes necessary.
   • Click Start, click Run, type icw, and then click OK.
   
   The Welcome to the Small Business Server Internet Connection Wizard page.
   1. On the Welcome to the Small Business Server Internet Connection Wizard page, click Next.
   2. Select an ISP for a new Internet account is used to connect to a Microsoft Referral Server that helps locate ISPs in your area that have special offerings for customers of BackOffice Small Business Server.

      In some cases these ISPs provide an online sign-up that configures the appropriate Small Business Server services. By selecting Select an ISP for a new Internet account, you launch the Internet Connection Wizard. The ICW then dials the Microsoft Referral Server and downloads a list of ISPs that have special offerings for Small Business Server customers. Therefore, in order to take advantage of this feature, you must have a functional modem on your server.

      If it supports online sign-up, once your new ISP has received your user, system, and billing information, the sign-up server generates an .ins file that is downloaded to your server. This .ins file will configure your dial-up networking connection, Proxy Server, Microsoft Exchange Server, and the information required by the Web Publishing Wizard. Some ISPs distribute sign-up floppy disks. If your ISP does this and is configured specifically for Small Business Server, you will not need to use the Small Business Server Internet Connection Wizard. Follow the instructions included with the sign-up disk to continue the installation.

      
      The Set Up Connection to Your ISP page.
   3. Select Router if the connection to the ISP is through a separate router, such as Frame Relay, an ISDN router, a cable router, or a DSL router. These routers must be configured separately. Before proceeding, you will also need to gather the router information needed to run the Wizard.
      Selecting this option displays the Set Up Router Connection to ISP page.
      
      The Configure Hardware Page
      On the Configure Hardware page, click Router, and then click Next.
   4. The Set Up Router Connection to ISP page gathers the information needed to correctly configure Small Business Server for use with a router on the network. The router address, which enables TCP/IP connectivity from the Small Business Server-based network to the Internet, is needed regardless of whether the router is connected directly to the local network or to the second network adapter configured under Small Business Server. These two situations are described in greater detail in "Router Configuration".

      If your router is not a full-time connection (for example, if it is a demand-dial ISDN router), select the My router is a dial-on-demand router option. When this option is selected, the Exchange Internet Mail Service will be configured to forward outgoing mail to the SMTP relay host specified later in the Configure SMTP Mail Delivery page.
      

      The Set Up Router Connection to ISP Page
      On the Setup Router Connection to ISP page, type 192.168.X.Y in the Router address box, and then make sure that the My router is connected to the server via a second network adapter check box is cleared.
   5. Type the IP address that is provided by your Internet Server Provider (ISP) in the Primary DNS server address box, type the IP address that is provided by your ISP in the Secondary DNS server address box (this setting is optional), and then click Next.
   6. Once the networking pieces have been configured, the next step establish the e-mail configurations.

      The Configure Internet Mail Settings page configures Small Business Server to use Internet e-mail. If you are using SMTP e-mail through Exchange Server, select the Use Exchange Server for Internet mail option, which activates the Microsoft Exchange Internet Mail Service in Small Business Server. This is the option to choose, whether you host your own Internet domain and SMTP mail through a full-time connection or you dial in to an ISP that queues your mail until you connect.
      Selecting Disable Exchange Server Internet Mail will disable the Microsoft Exchange Server Internet Mail Service. This option disables only Internet mail through Exchange Server; it does not affect the ability to send mail to others on the local Small Business Server-based network.
      If you have already configured or customized your Exchange Server settings and do not wish to override these settings, select Do not change my Exchange Server settings.

      If you will be retrieving e-mail from POP3 mailboxes at your ISP instead of directly through SMTP, select the Use POP3 for Internet mail option.

      
      The Configure Internet Mail Settings Page
      On the Configure Internet Mail Settings page, click SMTP for Internet mail in the Exchange Server box, click Disable POP3 electronic messaging in the POP3 box, and then click Next.

      NOTE: You can also use the Internet Connection Wizard to configure POP3. For more information about how to configure POP3, click More Information in the Internet Connection Wizard.

   7. On the Configure Internet Domain Name page, type the registered fully qualified domain name (FQDN) that is used when you send an e-mail message (for example, domain.com), and then click Next.

      NOTE: The example in the wizard assumes that mail is sent to "user@microsoft.com"; therefore "microsoft.com" is entered. Substitute "microsoft.com" for your Internet domain name.

   8. On the Configure SMTP Server Address page, click Use domain name system (DNS) for mail delivery, and then click Next.

      If in the Configure Internet Mail Settings page you select the option Use Exchange Server for Internet mail, the wizard presents the Configure SMTP Mail Delivery page. This page will allow you to configure the sending properties of the Microsoft Exchange Internet Mail Service. The choices available to you depend on the connection typ, e: for a demand-dial router connection or a dial-up connection, select the Forward all mail to host option.

      If you do not have a full-time connection to the Internet, you should select Forward all mail to host, which covers dial-up connections, dial-on-demand routers, or any connection that does not maintain a full-time Internet connection. This option will set the Internet Mail Service to forward all messages to an SMTP relay host provided by your ISP. This relay host can be entered by its IP address or fully qualified domain name (for example, exchange1.isp.com or 192.168.16.1). If a dial-up connection is established through this wizard, the option to use DNS is unavailable.
      
      The Configure SMTP Mail Delivery Page

      NOTE: The example in the wizard assumes that mail is sent to "user@microsoft.com"; therefore "microsoft.com" is entered. Substitute "microsoft.com" for your Internet domain name. A Domain Name needs to be configured as well.

      NOTE: If your ISP blocks direct message delivery, e-mail messages are delivered to your ISP's mail server, which forwards these messages to their destination. If your ISP blocks direct message delivery, contact the ISP for more information.

   9. On Receive Exchange Mail page, click Do not send a signal, and then click Next.
      The Receive Exchange Mail Page

      NOTE: You can turn on Message dequeuing if you require this functionality for mail retrieval. Before you do so, confirm this setting with your ISP.

      For more details on receiving mail, click here.

   10. Click Finish.

• Automatic Client Configuration

  Microsoft recommends that you use the DHCP service on either the router or the SBS-based server to the configure client. Do not configure the DHCP service on both devices; you must turn off the DHCP service on one of the devices. Microsoft recommends that you use the Windows 2000 DHCP server and that you turn off the router's DHCP server.
  The following example describes a DHCP scope that works in a majority of configurations. This example assumes you are using the default setting provided with the SBS installation.
  To view the DCHP scope:

  1. Click Start, point to Programs, point to Administrative Tools, click DHCP.
  2. Expand server.domain.local[192.168.X.Z], expand Scope[192.168.X.0] SBS Scope, and then expand Scope Options.
     The following settings are displayed:

     Option	Name	Vendor	Value
     003	Router	Standard	192.168.X.Y
     006	DNS Servers	Standard	192.168.X.Z
     044	WINS/NBNS Servers	Standard	192.168.X.Z
     046	WINS/NBT Node Type	Standard	0x1

• If you do not currently have a scope created, create a new scope. For additional information about how to create a new scope, click the article number below to view the article in the Microsoft Knowledge Base: 280209 SBS: SBS 2000 DHCP Service Is Not Configured If a Second DHCP Server Is Detected on the Network NOTE: If you use the procedure that is described above, configure the scope range in steps 6, 7, and 9 so that they reflect the TCP/IP address values that are compatible with your router and server.
• Manual Client Configuration
  To manually configure client connectivity, use the following settings for network printers, clients, and other devices on your local network.

  IP Address Field	IP Address Setting	Notes
  IP address	192.168.X.C	C is a unique value for each client computer
  Subnet Mask	255.255.255.0
  Default Gateway	192.168.X.Y	IP address of router
  Preferred primary	DNS192.168.X.Z	IP address of server
  Alternate secondary DNS	blank
  Primary WINS	192.168.X.Z	IP address of server
  Secondary WINS	192.168.X.Z	IP address of server

  NOTE: These settings include that variables that are above.