Add interface IPv4 address to a global var

hostIp.func.rsc

# Change to the name of interface that gets the dynamic IP address
:local inetinterface "pppoe-out1";

# use search & replace all on myEndpoint for multiple hosts

:global myEndpoint;
:if ([/interface get $inetinterface value-name=running]) do={
# Get the current IP on the interface
   :local currentIP [/ip address get [find interface="$inetinterface" disabled=no] address];

# Strip the net mask off the IP address
   :for i from=( [:len $currentIP] - 1) to=0 do={
       :if ( [:pick $currentIP $i] = "/") do={ 
           :set currentIP [:pick $currentIP 0 $i];
       } 
   }
   :if ($currentIP != $myEndpoint) do={
      :set myEndpoint $currentIP;