[CentOS-virt] How to connect a guest to a fixed routable address?

Thu May 27 20:23:32 UTC 2010
James B. Byrne <byrnejb at harte-lyne.ca>

On Wed, May 26, 2010 18:34, compdoc wrote:

> are other ways to do things. But I found bridges to be the best\
> way to go for attaching to the lan or wan, and virtual nets are
> great for guest-to-guest, or guest-to-server communication.
> A bridge lets several guests share one nic, but they can also be
> used to assign one guest to one nic. There is no magic involved,
> however - if you have too many guests sharing one network card,
> you're going to develop a bottleneck.

Thank you.  I have configured a bridge on that server and assigned
eth0 to it.  This a desktop development machine begin used to show a
proof of concept so adding another NIC is a frill that will not be

I am presently installing another guest that is using the eth0
directly.  I will see how that goes with respect to network

Can anyone explain to me the significance of tunctl and its relation
to virtual machines.  It seems quite important from what I have read
but tactual documentation on what it is and why or when  or how you
should use it is a bit sparse.

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