Convert IP to format cidr

This set everytime to 0 last Byte

:put (194.243.25.13 & 255.255.255.0)

From
http://forum.mikrotik.com/t/rextended-fragments-of-snippets/151033/1

{
:local sourceip    194.243.25.13
:local sourcesub   255.255.255.0 ; # /24

:local ip        [:toip $sourceip]
:local submask   [:toip $sourcesub]

:local network   ($ip & $submask)

:put "  Network* IP: $network"
}