Chapter 19 - Configuring Services For Macintosh

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The AppleTalk Protocol is the component of Services for Macintosh that can be configured using the Network icon in Control Panel.

AppleTalk Protocol is a stack of protocols that Services for Macintosh uses to route information and configure zones. It works behind the scenes to ensure that computers on the network can talk to one another.

Starting the Configuration

You start configuration of the AppleTalk Protocol from the Network icon in Windows NT Server Control Panel.

To get started 

  1. In Control Panel, click Network. 

  2. In the Services tab, select Services For Macintosh and click Properties. 

    The Microsoft AppleTalk Protocol Properties dialog box appears. 

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Configuring AppleTalk Protocol

You use the Microsoft AppleTalk Protocol Properties dialog box to select a default network from a list of adapter cards bound to the AppleTalk Protocol, and to enable routing and seeding of the network, which include configuring zones and setting network ranges.

Choosing a Network and Zone

Start with the Microsoft AppleTalk Protocol Properties dialog box (see "Starting the Configuration," earlier in this chapter) where you can see the default network and the other network adapters to which the AppleTalk Protocol is bound. You also use this dialog box to select the zone where the services will appear, to specify that the server act as an AppleTalk router, and to choose Advanced options for AppleTalk routing, such as seeding the network. Seeding the network means determining zones and the default network and setting network ranges.

To choose a network and zone 

  1. In the General tab, in the Default Adapter box, select the network you want. 

    The Network list shows the network adapter card drivers available on the computer running Windows NT Server. 

    Note If the computer running Windows NT Server is to be used as a router, the LocalTalk network cannot be used as the default network. 

  2. In the Default Zone box, select the zone in which you want Services for Macintosh to appear.

    This is the zone in which the File Server for Macintosh and Windows NT Server printers will appear when Macintosh users select them in Chooser.

In the Routing tab, if you select the Enable Routing check box, the computer running Windows NT Server will become an AppleTalk router. This means that if the AppleTalk Protocol is bound to more than one network card, the computer running Windows NT Server will be seen from Macintoshes connected to all the bound networks. Otherwise, the computer running Windows NT Server can be used only from the Macintoshes connected to the default network, unless another router broadcasts the information for the other networks.

Seeding the Network

In the Routing tab, the Adapter box shows a list of network cards that correspond to the networks the Windows NT Server computer is attached to. Seeding can be enabled on any or all of the networks. To seed a specific network, choose the corresponding adapter and then select the use this router to seed the network check box.

Caution The seeding information must agree with all routing information on that network and internet. Otherwise, all routers on the internet could fail to function.

To seed the network 

  1. In the Routing tab, select the Enable Routing check box. 

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  2. If you want, select another network from the Adapter list. 

    This list contains all network adapter cards to which the AppleTalk Protocol is bound. (To add and remove network adapters, use the Network icon and the Add and Remove buttons in the Adapter tab.) 

  3. Select the Use this router to seed the network check box.

Selecting to seed the network makes the present state of the Zone List and the Network Range options available.

To have the server stop seeding a network 

  1. Clear the Use this router to seed the network check box.. 

  2. Click OK. 

Setting the Network Range

Setting the network range is part of seeding a network. Each AppleTalk network in an internet is assigned a range of numbers, and each node is identified to the network by one of those numbers, combined with a dynamically assigned AppleTalk node identification number. Because of this, no two networks on an internet should have overlapping ranges.

The value you specify for a network must range from 1 through 65,279. If you specify a range that overlaps another network range on the computer running Windows NT Server, you'll see a warning message. For more information about ranges, refer to Chapter 17, "Planning Your AppleTalk Network."

To set a network range 

  1. In the From box, provide a number. 

  2. In the To box, provide a number. 

    If the network adapter is for a LocalTalk network, you cannot type a value in the to range. 

Setting Zone Information

Setting zone information is part of seeding a network. You can see the current list of zones, add and remove zones, and set the default zone. The default zone is the zone in which all AppleTalk devices will appear if a desired zone has not been specified for the device.

To set zone information, start with the Microsoft AppleTalk Protocol Properties dialog box. For an explanation of how to get to this dialog box, see "Starting the Configuration" and "Seeding the Network" earlier in this chapter.

To see the current state of the zones on a chosen network 

  1. In the Routing tab, select a zone from the Default Zone list. 

  2. Click Get Zones.

    This gets the current zone information for the current network. If you want to see zones on another network, select one from the Default Networks list. 

To add a zone to the network 

  1. Click Add. 

  2. In the New Zone box, type the name of the new zone. 

    The new zone is added to the Zone List. 

  3. Click OK. 

To remove a zone or zones from the network 

  1. Select a zone in the Default Zone list and click Remove. 

    The zone or zones are removed from the Zone List. For others on the network to see the change, however, you must restart the AppleTalk Protocol, which is serving as a router. 

  2. Click OK. 

To set a new default zone for the network 

  1. In the Default Zone list, select a zone. 

  2. Click Set Default. 

    You see the new default zone highlighted in the Zone list. For others on the network to see the change, however, you must restart the AppleTalk Protocol, which is serving as a router. 

  3. Click OK.

Note For the changes to take effect, you must stop the AppleTalk Protocol and restart it so that the information can be routed on the network.

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