282 lines
5.0 KiB
HTML
282 lines
5.0 KiB
HTML
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
>A Tour of Linux Network Devices</TITLE
|
|
><META
|
|
NAME="GENERATOR"
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.57"><LINK
|
|
REL="HOME"
|
|
TITLE="Linux Network Administrators Guide"
|
|
HREF="index.html"><LINK
|
|
REL="UP"
|
|
TITLE="Configuringthe NetworkingHardware"
|
|
HREF="x-087-2-hardware.html"><LINK
|
|
REL="PREVIOUS"
|
|
TITLE="Kernel Configuration"
|
|
HREF="x-087-2-hardware.kernel.config.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="Ethernet Installation"
|
|
HREF="x-087-2-hardware.drivers.ethernet.html"></HEAD
|
|
><BODY
|
|
CLASS="SECT1"
|
|
BGCOLOR="#FFFFFF"
|
|
TEXT="#000000"
|
|
LINK="#0000FF"
|
|
VLINK="#840084"
|
|
ALINK="#0000FF"
|
|
><DIV
|
|
CLASS="NAVHEADER"
|
|
><TABLE
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TH
|
|
COLSPAN="3"
|
|
ALIGN="center"
|
|
>Linux Network Administrators Guide</TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="left"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="x-087-2-hardware.kernel.config.html"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
>Chapter 3. Configuringthe NetworkingHardware</TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="x-087-2-hardware.drivers.ethernet.html"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="SECT1"
|
|
><H1
|
|
CLASS="SECT1"
|
|
><A
|
|
NAME="X-087-2-HWCONFIG.TOUR"
|
|
>3.2. A Tour of Linux Network Devices</A
|
|
></H1
|
|
><P
|
|
>The Linux kernel supports a number of hardware drivers for various
|
|
types of equipment. This section gives a short overview of the driver
|
|
families available and the interface names they use.</P
|
|
><P
|
|
> There is a number
|
|
of standard names for interfaces in Linux, which are listed here. Most
|
|
drivers support more than one interface, in which case the interfaces
|
|
are numbered, as in <TT
|
|
CLASS="FILENAME"
|
|
>eth0</TT
|
|
> and
|
|
<TT
|
|
CLASS="FILENAME"
|
|
>eth1</TT
|
|
>:</P
|
|
><P
|
|
><P
|
|
></P
|
|
><DIV
|
|
CLASS="VARIABLELIST"
|
|
><DL
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>lo</TT
|
|
></DT
|
|
><DD
|
|
><P
|
|
>
|
|
This is the local loopback interface. It is used for testing purposes, as
|
|
well as a couple of network applications. It works like a closed circuit in
|
|
that any datagram written to it will immediately be returned to the host's
|
|
networking layer. There's always one loopback device present in the kernel,
|
|
and there's little sense in having more.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>eth0</TT
|
|
>, <TT
|
|
CLASS="FILENAME"
|
|
>eth1</TT
|
|
>, …</DT
|
|
><DD
|
|
><P
|
|
>
|
|
|
|
These are the Ethernet card interfaces. They are used for most Ethernet cards,
|
|
including many of the parallel port Ethernet cards.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>tr0</TT
|
|
>, <TT
|
|
CLASS="FILENAME"
|
|
>tr1</TT
|
|
>, …</DT
|
|
><DD
|
|
><P
|
|
>
|
|
|
|
These are the Token Ring card interfaces. They are used for most Token Ring
|
|
cards, including non-IBM manufactured cards.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>sl0</TT
|
|
>, <TT
|
|
CLASS="FILENAME"
|
|
>sl1</TT
|
|
>, …</DT
|
|
><DD
|
|
><P
|
|
>
|
|
|
|
These are the SLIP interfaces. SLIP interfaces are associated with serial
|
|
lines in the order in which they are allocated for SLIP.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>ppp0</TT
|
|
>, <TT
|
|
CLASS="FILENAME"
|
|
>ppp1</TT
|
|
>, …</DT
|
|
><DD
|
|
><P
|
|
>
|
|
|
|
These are the PPP interfaces. Just like SLIP interfaces, a PPP interface is
|
|
associated with a serial line once it is converted to PPP mode.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>plip0</TT
|
|
>,
|
|
<TT
|
|
CLASS="FILENAME"
|
|
>plip1</TT
|
|
>, …</DT
|
|
><DD
|
|
><P
|
|
>
|
|
These are the PLIP interfaces. PLIP transports IP datagrams over
|
|
parallel lines. The interfaces are allocated by the PLIP driver at
|
|
system boot time and are mapped onto parallel ports. In the
|
|
<I
|
|
CLASS="EMPHASIS"
|
|
>2.0.x</I
|
|
> kernels there is a direct relationship
|
|
between the device name and the I/O port of the parallel port, but in
|
|
later kernels the device names are allocated sequentially, just as for
|
|
SLIP and PPP devices.</P
|
|
></DD
|
|
><DT
|
|
><TT
|
|
CLASS="FILENAME"
|
|
>ax0</TT
|
|
>,
|
|
<TT
|
|
CLASS="FILENAME"
|
|
>ax1</TT
|
|
>, …</DT
|
|
><DD
|
|
><P
|
|
>
|
|
|
|
These are the AX.25 interfaces. AX.25 is the primary protocol used by
|
|
amateur radio operators. AX.25 interfaces are allocated and mapped in
|
|
a similar fashion to SLIP devices.</P
|
|
></DD
|
|
></DL
|
|
></DIV
|
|
></P
|
|
><P
|
|
>There are many other types of interfaces available for other network
|
|
drivers. We've listed only the most common ones.</P
|
|
><P
|
|
>During the next few sections, we will discuss the details of using
|
|
the drivers described previously. The Networking HOWTO provides details on
|
|
how to configure most of the others, and the AX25 HOWTO explains how to
|
|
configure the Amateur Radio network devices.</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="NAVFOOTER"
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"><TABLE
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="x-087-2-hardware.kernel.config.html"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="index.html"
|
|
>Home</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="x-087-2-hardware.drivers.ethernet.html"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>Kernel Configuration</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="x-087-2-hardware.html"
|
|
>Up</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>Ethernet Installation</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |