[one-users] Network: fixed IP Adresses

[Hendrik Wißmann]

Hello,

I'm running an three node installation of opennebula with one frontend 
and two vm-hosts (KVM) and
a fixed network configuration. The used "network file" has the content:

NAME    = "First Lan"
TYPE    = FIXED

# We have to bind this network to ''virbr1'' for Internet Access
BRIDGE  = br0

LEASES  = [IP=192.168.78.115]
LEASES  = [IP=192.168.78.116]

and sunstone shows:

192.168.78.115 	02:00:84:b0:4e:73   Used by VM 57
192.168.78.116 	02:00:84:b0:4e:74   Used by VM 62


I booted two images (centos 6) and modified the 
/etc/sysconfig/network-scripts/ifcfg-eth0
to use dhcp with one of the two mac-adresses. After a network restart, 
to my surprise ifconfig -a
shows in the first case the mac-address 02:00:84:b0:4e:73 with 
192.168.78.118 and
in the second case the mac-address 02:00:84:b0:4e:74 with 192.168.78.119.
How is this possible; the mac-addresses should be unknown it the 
existing network.

Is there an explanation for this behavior?

Regards Hendrik