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Configuring Network Interfaces

Before Cisco TCP/IP Suite can communicate on your network, you must identify the interface that is to be used and supply information about the workstation and its networking environment.

To define interfaces for Cisco TCP/IP Suite, use the Interface tab in the Configuration Utility.

This section includes:

Adding a New Interface

To establish a new interface:

  1. Start the Configuration Utility and choose the Interface tab.
  2. Click the New button.

    The New Interface dialog box appears.

  3. In the Interface Label field, enter the name you selected to designate the network interface. This is a unique name you assign to easily identify the interface.
  4. Select the interface type, such as Ethernet or Serial. If you choose Serial, go to Step 9.
  5. If you want to have your IP address, subnet mask, and broadcast address assigned dynamically via the BOOTP or DHCP protocols, check Dynamic Configuration. If you use dynamic configuration, go to Step 9.
  6. Enter the workstation's IP address in dotted-decimal format, such as 192.168.34.22.
  7. Cisco TCP/IP Suite automatically calculates the subnet mask for your workstation from its IP address. If your subnet mask is different than the one entered by Cisco TCP/IP Suite, enter the correct one, such as 255.255.255.0.
  8. Cisco TCP/IP Suite automatically calculates the broadcast address for your workstation. If your broadcast is different than the one entered by Cisco TCP/IP Suite, enter the correct broadcast address in the Broadcast Address field.
  9. Check Enable Interface to enable the interface. If you are installing on Windows 95, click OK. If you are installing on Windows 3.x, continue with the next step.
  10. Click the appropriate driver radio button, either ODI, NDIS 2.0, or NDIS 3.0, unless you are using Windows 95. Windows 95 handles device drivers independently of Cisco TCP/IP Suite.
  11. Click OK.

    One of the following then occurs:

  12. When finished with the Configuration Utility, click Done and save your changes.

Modifying an Interface

To modify an entry in the interface table:

  1. Start the Configuration Utility and choose the Interface tab.
  2. In the interface table, select the entry you want to change.
  3. Click the Modify button. The Modify Interface dialog box appears.
  4. Modify the appropriate network interface parameters.
  5. Click OK.
  6. You can continue using the Configuration Utility or you can exit and save your changes. To exit the Configuration Utility, click Done.

Changing Network Drivers

If you want your workstation to use a different network driver, you must configure the enabled interface for the new driver. When changing network drivers, remember:

For Windows 95, change drivers by using the Windows 95 install procedures to install and enable the desired drivers.

For Windows 3.1, to change the network driver:

  1. Start the Configuration Utility and choose the Interface tab.
  2. In the interface table, select the entry you want to change.
  3. Click the Modify button. The Modify Interface dialog box appears.
  4. Verify the Enable Interface check box is checked.
  5. Click the radio button of the driver you want to use.
  6. Click OK.

    The Configuration Utility then attempts to detect the network driver in memory:

  7. When finished with the Configuration Utility, click Done and save your changes.

Deleting an Interface

Note

If you delete the enabled interface, you must enable another interface.

To remove a network interface from the interface table:

  1. Start the Configuration Utility and choose the Interface tab.
  2. In the interface table, select the interface you want to delete.
  3. Click the Delete button.
  4. When finished with the Configuration Utility, click Done and save your changes.


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