ifconfig

Syntax

ifconfig[-r [name]][-l[name]] ifconfig[-s name dhcp|[static IPaddress mask gateway]| dns IP]

Description

Modifies the default IP address of the UEFI IPv4 network stack.

Options

-r: Renews the interface configuration and sets the DHCP policy.
-l: Lists the configuration.
-s: Sets the configuration.
name: Specifies an adapter name. For example, eth0.
dhcp: Specifies that DHCP4 is to dynamically request IPv4 addresses for all or a specific interface.
static IPaddress: Specifies a static IPv4 address in four integer values, each between 0 and 255, separated by periods.
mask: Specifies a subnet mask in four integer values, each between 0 and 255, separated by periods.
gateway: Specifies a default gateway in four integer values, each between 0 and 255, separated by periods.
dns IP: Specifies a DNS server address.
permanent: Specifies that the configuration is permanent (not one-time only).

Usage

IMPORTANT:

You do not need to use ifconfig on a network interface if you plan to run webclient or ftp over the same interface. The interface and IP address settings are selected automatically by the Pre-Boot Network Settings configured in the System Utilities.

If the interface used by ftp and webclient is configured by ifconfig, that setting is erased and, instead, the System Utilities Pre-Boot Network Settings menu is applied on the interface when the commands are run.

You can use this command to configure host networks for preboot network access from the Shell. The –c option clears the configuration for all or a specified interface, causing the network stack for related interfaces to default back to DHCP.

Examples

To list the configuration for the eth0 interface:

fso:\> ifconfig -l eth0

To use DHCP4 to dynamically request the IPv4 address configuration for the eth0 interface:

fso:\> ifconfig -s eth0 dhcp

fso:\> ifconfig -s eth0 static 192.168.0.5 255.255.255.0 192.168.0.1 permanent
      To configure a DNS server address for the 
		  eth0 interface:

fso:\> ifconfig -s eth0 dns 192.168.0.8 192.168.0.9