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


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