infra_public/roles/stable/build/files/mac56-to-ip_host.sh

#!/bin/bash

[ $1 = "" ] && exit
mac=$1
mac_5=$(echo ${mac: -4:2})
mac_6=$(echo ${mac: -2})
ip_c=$(echo $((0x$mac_5)))
ip_d=$(echo $((0x$mac_6)))

if [[ $2 = "--start-from" ]]
then
  [[ $ip_c -lt $3 ]] && ((ip_c+=$3))
fi

echo ${ip_c}.${ip_d}