LIST natpf rules in Virtualbox/Vagrant

Question

I often get errors like this when running Vagrant:

VBoxManage: error: A NAT rule of this name already exists
VBoxManage: error: Details: code NS_ERROR_INVALID_AR         


        

Answer 1

Expanding on Andrew's answer, this lists the rules for all your VMs

for vm in `vboxmanage list vms | awk -F'"' '$0=$2'`
do
    echo "Rules for VM $vm"
    VBoxManage showvminfo $vm --machinereadable | awk -F '[",]' '/^Forwarding/ { printf ("Rule %s host port %-5d forwards to guest port %-5d\n", $2, $5, $7); }'
    printf '\n'
done