HP Embedded Firewall manual Configuring the NIC, Default NIC Settings, Option Description Settings

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Configuring the NIC

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

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

Default NIC Settings

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

Option	Description		Settings
NetBoot ROM	Provides the ability to boot a computer over the network.		•	Disabled
	Enables or disables the Netboot ROM (if a boot ROM is		•	Enabled
	installed on the NIC).
Duplex	Determines if the NIC transmits data across the network		•	Auto Select
	in both directions simultaneously (full-duplex) or in one		•	Full-Duplex
	direction at a time (half-duplex).		•	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-Duplexsets 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-Duplexsets 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.

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