CentOS - Aug 2009 - How to create a tun-device with CentOS packages only?

Hello List,

I've got a somewhat weird question. Let me tell you what my intent is first:
We're running a set of Dell boxes with CentOS 4. Some of them use
OpenVPN. As we need to monitor the system status of these boxes, we use
the Dell supplied OMSA package. As it turns out, OMSA totally breaks if
you've got one or more tun devices configured.
AFAICT Dell denies support with that issue, because OpenVPN is a
third-party add-on.
Now instead of discussing with Dell for hours, I'd like to reproduce the
issue without OpenVPN which brings me to my question:

How can I create a tun device without using any add on packages using
only software contained in CentOS?

Regards,
Andreas
-- 
Solvention
Egermannstr. 6-8
53359 Rheinbach

Tel: +49 2226 158179-0
Fax: +49 2226 158179-9

http://www.solvention.de
mailto:info at solvention.de
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>How can I create a tun device without using any add on packages using
>only software contained in CentOS?
Just your kernel :) Support is built in. Manipulation of and other commands
might need additional software though...