Attachment 62501 Details for Bug 97760 – the starting point

the starting point

vpnc-howto.xml (text/xml), 4.33 KB, created by David H. Askew on 2005-07-02 13:22:59 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: David H. Askew

Created: 2005-07-02 13:22:59 UTC

Size: 4.33 KB

patch

obsolete

><?xml version='1.0' encoding='UTF-8'?>
><!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
>
><guide link="/doc/vpnc-howto.xml">
>
><title>VPN Howto : Using vpnc</title>
>
><author title="Author">
>  <mail link="insertemailaddresshere">replace with name</mail>
></author>
>
><abstract>
>This document details how to connect your workstation to a cisco 3000 vpn concentrator.
></abstract>
>
><version>0.1</version>
><date>2005-07-02</date>
>
><chapter>
><title>Introduction</title>
><section>
><body>
>
><p>
>If you're reading this, then you likely need to connect to your office network from home or during travel.  Many companies utilize Cisco 3000 vpn concentrators for their vpn needs, and I am willing to bet that most techies think that they are forced to use Windows to connect to them.  Well I'm here to tell you that connecting to a Cisco vpn may very well be possible, and this document will hopefully enable to you to setup a working tunnel using your Gentoo workstation or laptop.
></p>
>
><p>
>The assumptions made at this point are:
></p>
>
><ul>
> <li>You have gentoo installed</li>
> <li>You have internet access</li>
> <li>You want to connect to a cisco 3000 vpn concentrator</li>
> <li>You know how to configure, build, and install a new kernel</li>
></ul>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Kernel Configuration</title>
><section>
><body>
>
><note>
>The kernel used in this guide is <c>sys-kernel/gentoo-sources 2.6.9-r9</c>.
></note>
>
><p>
>In order for the Linux to be able to open a vpn connection, "Universal TUN/TAP device driver support" must be enabled in the kernel.
></p>
>
><p>
>You can verify if your kernel has TUN/TAP support with the following command:
></p>
>
><pre caption="Checking the kernel config">
># <i>cat /usr/src/linux/.config | grep TUN</i>
>CONFIG_INET_TUNNEL=m
># CONFIG_INET6_TUNNEL is not set
># CONFIG_IPV6_TUNNEL is not set
>CONFIG_TUN=m
># CONFIG_8139TOO_TUNE_TWISTER is not set
></pre>
>
><p>
>As you can see above, <c>CONFIG_TUN=m</c> is compiled as a module.  If this is not the case with your setup, enable support in your kernel of choice, rebuild, install, reboot, and return to this document before continuing.
></p>
>
><pre caption="Config location">
>TUN/TAP support is located under:
>
>Device Drivers  --->
>	Networking support  --->
>		   Universal TUN/TAP device driver support
></pre>
>
><p>
>If you already have TUN/TAP support built for your kernel, or you just booted your computer after a fresh kernel build, then we need to verify that the kernel has the appropriate code initialized.
></p>
>
><p>
>If you built TUN/TAP support directly into the kernel, you should see information from <c>dmesg</c> output like the following:
></p>
>
><pre caption="Checking dmesg output">
># <i>dmesg | grep TUN</i>
>Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky
></pre>
>
><p>
>If you build TUN/TAP support as a module, you first must load the "tun" module.
></p>
>
><pre caption="Load tun module">
># <i>modprobe tun</i>
># <i>lsmod</i>
>Module                  Size  Used by
>tun                     7296  0
>nvidia               4050204  12
></pre>
>
><p>
>Now that the "tun" module is loaded, check dmesg output.  You should see something like the following:
></p>
><pre caption="Checking dmesg output">
># <i>dmesg | grep TUN</i>
>Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky
></pre>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Install Needed Software</title>
><section>
><body>
>
><p>
>Now that we have a working kernel setup, we need to install vpnc.
></p>
><pre caption="Installing vpnc">
># <i>emerge net-misc/vpnc</i>
></pre>
>
><note>
>The version of <c>vpnc</c> used in this guide is <c>0.3.2</c>.  As of this writing, <c>vpnc</c> version <c>0.3.3</c> has been released, but it has not yet added to the portage tree.
></note>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Setup vpnc</title>
><section>
><body>
>
><p>
>vpnc setup notes go here
></p>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Setup routing tables</title>
><section>
><body>
>
><p>
>routing setup notes go here
></p>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Setup dns</title>
><section>
><body>
>
><p>
>dns setup notes go here
></p>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Useful Links</title>
><section>
><body>
>
><p>
><uri link="http://www.unix-ag.uni-kl.de/~massar/vpnc/">vpnc homepage</uri>
></p>
>
></body>
></section>
></chapter>
>
><chapter>
><title>Final Notes</title>
><section>
><body>
>
><p>
>Final Notes go here.
></p>
>
></body>
></section>
></chapter>
></guide>

Actions: View

Attachments on bug 97760: 62501 | 62511 | 62569 | 62813 | 63106 | 63841 | 64761 | 64838 | 64911 | 65170 | 65339 | 77310 | 78833 | 111455 | 120062