Find the IP address of a machine I just booted

I am booting VMs via qemu (no libvirt) and sometimes they don't tell me what IP address they got when booted. To figure it out, considering I know the IP address, I can query the network via the Address Resolution Protocol (ARP) I know they get address in sequence, so: ayoung@sut11sys-r112:~/devel/ampvirt$ arp -n | grep -i "52:54:00:70:0c:" 10.76.112.154 ether 52:54:00:70:0c:02 C virbr0 10.76.112.153 ether 52:54:00:70:0c:04 C virbr0 10.76.112.155 ether 52:54:00:70:0c:03 C virbr0