This script identifies the IP addresses of all VMs running on TrueNAS SCALE. It queries the system using midclt to retrieve MAC addresses for each VM and uses arp to resolve them to IP addresses.

find-all-truenas-vm-ips.sh

midclt call vm.query | jq -r '
  .[] | 
  select(.status.state=="RUNNING") | 
  .devices[] | 
  select(.dtype=="NIC") | 
  .attributes.mac' | while read -r mac; do 
  echo -n "$mac: " 
  arp -a | grep -i "$mac" | awk '{print $1, $2}' 
done