186 lines
3.5 KiB
HTML
186 lines
3.5 KiB
HTML
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
>Example Network:The Virtual Brewery</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="PREVIOUS"
|
|
TITLE="nn Configuration"
|
|
HREF="x-087-2-newsreaders.nn.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="Connecting the Virtual Subsidiary Network"
|
|
HREF="x19519.html"></HEAD
|
|
><BODY
|
|
CLASS="APPENDIX"
|
|
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-newsreaders.nn.html"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
></TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="x19519.html"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="APPENDIX"
|
|
><H1
|
|
><A
|
|
NAME="X-087-2-APPENDIX.BREWERY"
|
|
>Appendix A. Example Network:The Virtual Brewery</A
|
|
></H1
|
|
><P
|
|
>Throughout this book we've used the following example that is a little less
|
|
complex than Groucho Marx University and may be closer to the tasks you will
|
|
actually encounter.</P
|
|
><P
|
|
>The Virtual Brewery is a small company that brews, as the name suggests,
|
|
virtual beer. To manage their business more efficiently, the virtual brewers
|
|
want to network their computers, which all happen to be PCs running the
|
|
brightest and shiniest production Linux kernel. <A
|
|
HREF="x-087-2-appendix.brewery.html#X-087-2-APPENDIX.BREWERY.DIAGRAM"
|
|
>Figure A-1</A
|
|
> shows the network configuration.</P
|
|
><P
|
|
>On the same floor, just across the hall, there's the Virtual Winery, which
|
|
works closely with the brewery. The vintners run an Ethernet of their own.
|
|
Quite naturally, the two companies want to link their networks once they are
|
|
operational. As a first step, they want to set up a gateway host that
|
|
forwards datagrams between the two subnets. Later, they also want to have a
|
|
UUCP link to the outside world, through which they exchange mail and news. In
|
|
the long run, they also want to set up PPP connections to connect to offsite
|
|
locations and to the Internet.</P
|
|
><P
|
|
>The Virtual Brewery and the Virtual Winery each have a class C subnet of
|
|
the Brewery's class B network, and gateway to each other via the host
|
|
<SPAN
|
|
CLASS="SYSTEMITEM"
|
|
>vlager</SPAN
|
|
>, which also supports the
|
|
UUCP connection. <A
|
|
HREF="x-087-2-appendix.brewery.html#X-087-2-APPENDIX.BREWERY.SUBSIDIARY"
|
|
>Figure A-2</A
|
|
> shows the configuration.</P
|
|
><DIV
|
|
CLASS="FIGURE"
|
|
><A
|
|
NAME="X-087-2-APPENDIX.BREWERY.DIAGRAM"
|
|
></A
|
|
><P
|
|
><B
|
|
>Figure A-1. The Virtual Brewery and Virtual Winery subnets</B
|
|
></P
|
|
><P
|
|
><IMG
|
|
SRC="lag2_aa01.jpg"></P
|
|
></DIV
|
|
><DIV
|
|
CLASS="FIGURE"
|
|
><A
|
|
NAME="X-087-2-APPENDIX.BREWERY.SUBSIDIARY"
|
|
></A
|
|
><P
|
|
><B
|
|
>Figure A-2. The Virtual Brewery Network</B
|
|
></P
|
|
><P
|
|
><IMG
|
|
SRC="lag2_aa02.jpg"></P
|
|
></DIV
|
|
></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-newsreaders.nn.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="x19519.html"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>nn Configuration</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
> </TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>Connecting the Virtual Subsidiary Network</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |