MAC address assignment in KVM

tog

Member
Jun 5, 2008
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I just started up a second instance of KVM and the second instance's "e1000" virtual adapter was assigned the same default MAC address as the first existing KVM: 52:54:00:12:34:56.

This of course collided with the first KVM...

Both are using the bridging and both were assigned the same MAC address so only one at a time could work.
 
Ok, thanks.

For the benefit of anybody else looking through the forum:
Change your network: line in your /etc/qemu-server/XXX.conf like so:
Code:
network: macaddr=52:54:00:12:34:57,model=e1000,tap
And so on for additonal KVMs, just increment the MAC address by one each time.