[CentOS] Finding DHCP IP of guest system

Fri Jul 16 15:11:40 UTC 2010
Akemi Yagi <amyagi at gmail.com>

On Thu, Jul 15, 2010 at 12:03 PM, David Dyer-Bennet <dd-b at dd-b.net> wrote:
> If I can log in to the guest through the console, I can of course find out
> what IP DHCP has assigned it.  If I configure a static IP I can of course
> connect to the system there (if it runs services, the firewall allows it,
> all the usual caveats).
> Does there happen to be any way to determine from dom0 what IPs are
> participating in the network and which guests they belong to?  (I'm
> configuring everything as bridged; basically I want to use virtualization
> to pretend I have a bunch of independent systems visible to the outside.)

Soon after I started using kvm and created guests with bridged
network, I asked the same question as yours. I have not been able to
find a clear answer to date.  If I'm not mistaken, there is no easy
solution as you suspected. The host has no knowledge of the guests'
IPs because an outside DHCP server (in my case at home, it is a
router/cable modem) provides the IP addresses. So, I've been using the
"console" method.