Eu tenho um método (feito em outro fórum algumas vezes atrás)
# vm mac address list
for vm in $(virsh list | grep running | awk '{print $2}'); do \
echo -n "$vm "; \
virsh dumpxml $vm| grep -oP "52:54:[\da-f:]+" ;
done > vm_mac.list
# vm ip list
arp -i virbr0 | grep '52:' | while read addr ; do \
ip=$(echo $addr | awk '{print $1}'); \
mac=$(echo $addr | awk '{print $3}'); \
vm=$(grep "$mac" vm_mac.list | awk '{print $1}'); \
echo "$vm $ip $mac"; \
done | sort