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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE sections SYSTEM "/dtd/book.dtd"> |
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<!-- The content of this document is licensed under the CC-BY-SA license --> |
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<!-- See http://creativecommons.org/licenses/by-sa/2.5 --> |
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-net-start.xml,v 1.3 2005/06/14 18:34:32 neysx Exp $ --> |
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<sections> |
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<version>1.2</version> |
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<date>2005-07-14</date> |
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<section> |
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<title>Getting started</title> |
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<body> |
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<note> |
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This document assumes that you have correctly configured your kernel, its |
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modules for your hardware and you know the interface name of your hardware. |
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We also assume that you are configuring eth0, but it could also be |
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eth1, wlan0, etc. |
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</note> |
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<note> |
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This document requires you are running baselayout-1.11.11 or better. |
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</note> |
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<p> |
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To get started configuring your network card, you need to tell the Gentoo RC |
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system about it. This is done by creating a symbolic link from <c>net.lo</c> |
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to <c>net.eth0</c> in <path>/etc/init.d</path> |
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</p> |
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<pre caption="Symlinking net.eth0 to net.lo"> |
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# <i>cd /etc/init.d</i> |
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# <i>ln -s net.lo net.eth0</i> |
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</pre> |
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<p> |
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Gentoo's RC system now knows about that interface. It also needs to know how |
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to configure the new interface. All the network interfaces are configured in |
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<path>/etc/conf.d/net</path>. Below is a sample configuration for DHCP and |
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static addresses. |
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</p> |
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<pre caption="Examples for /etc/conf.d/net"> |
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<comment># For DHCP</comment> |
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config_eth0=( "dhcp" ) |
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<comment># For static IP using CIDR notation</comment> |
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config_eth0=( "192.168.0.7/24" ) |
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routes_eth0=( "default via 192.168.0.1" ) |
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<comment># For static IP using netmask notation</comment> |
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config_eth0=( "192.168.0.7 netmask 255.255.255.0" ) |
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routes_eth0=( "default gw 192.168.0.1" ) |
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</pre> |
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<note> |
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If you do not specify a configuration for your interface then DHCP is assumed. |
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</note> |
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<note> |
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CIDR stands for Classless InterDomain Routing. |
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Originally, IPv4 addresses were classified as A, B, or C. |
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The early classification system did not envision the massive popularity of the |
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Internet, and is in danger of running out of new unique addresses. CIDR is an |
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addressing scheme that allows one IP address to designate many IP addresses. |
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A CIDR IP address looks like a normal IP address except that it ends with a |
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slash followed by a number; for example, 192.168.0.0/16. |
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CIDR is described in <uri link="http://rfc.net/rfc1519.html">RFC 1519</uri>. |
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</note> |
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<p> |
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Now that we have configured our interface, we can start and stop it using the |
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below commands |
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</p> |
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<pre caption="Starting and stopping network scripts"> |
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# <i>/etc/init.d/net.eth0 start</i> |
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# <i>/etc/init.d/net.eth0 stop</i> |
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</pre> |
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<impo> |
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fox2mike |
1.4 |
When troubleshooting networking, it is recommended to set |
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<c>RC_VERBOSE="yes"</c> in <path>/etc/conf.d/rc</path> so that you get more |
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information about what's happening. |
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</impo> |
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<p> |
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Now that you have successfully started and stopped your network interface, you |
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may wish to get it to start when Gentoo boots. Here's how to do this. The last |
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"rc" command instructs Gentoo to start any scripts in the current runlevel |
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that have not yet been started. |
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</p> |
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<pre caption="Configuring a network interface to load at boot time"> |
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# <i>rc-update add net.eth0 default</i> |
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# <i>rc</i> |
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</pre> |
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</body> |
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</section> |
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</sections> |
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