HP Embedded Firewall Series Instrukcja Użytkownika Pobierz pdf (Strona 49)

11 Configuring the NIC

This chapter describes how to configure the 3Com 10/100 Secure (3CR990B) NIC.

Default NIC Settings

The table below lists the configuration settings for the NIC. The default setting is shown in

bold in the Settings column.

NOTE: Before you change the NIC configuration settings, contact your system

administrator.

Option Description Settings

NetBoot ROM Provides the ability to boot a computer over the network.

Enables or disables the Netboot ROM (if a boot ROM is

installed on the NIC).

• Disabled

• Enabled

Duplex Determines if the NIC transmits data across the network

in both directions simultaneously (full-duplex) or in one

direction at a time (half-duplex).

• Auto Select allows the NIC to automatically connect

at the duplex mode of the connected hub or switch.

When you select this setting, the Media Type is

automatically set to Auto Select.

• Full-Duplex sets the NIC to operate in full-duplex

mode. To use this setting, the switch that you are

connected to must support full-duplex. You must also

manually set the NIC Media Type setting.

• Half-Duplex sets the NIC to operate in half-duplex

mode. You must also set the NIC Media Type setting.

Note: If you are running Windows 2003,

Windows XP, or Windows 2000, changes made to

the Duplex setting though the 3Com NIC Diagnostics

are not reflected in the registry unless you also change

the Media Select property setting in Windows:

1 In the Device Manager window, double-click

Network adapters.

2 Right-click the 3CR990B NIC and select Properties.

3 Select the Advanced tab.

4 Select Media Select in the property list, and make the

appropriate setting change in the Value list.

• Auto Select

• Full-Duplex

• Half-Duplex

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HP Embedded Firewall Series Instrukcja Użytkownika Strona 49