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IP Pool Statistics - MikroTik Script RouterOS

IP Pool Statistics - MikroTik Script RouterOS

This script will list the used, available, and percent usage of IPs in IP -> Pools in RouterOS.

# List stats for IP -> Pool
#
# criticalthreshold = output pool display in red if pool used is above this %
# warnthreshold = output pool display in gold if pool used is above this %
:local criticalthreshold 85
:local warnthreshold 70
# Internal processing below...
# ----------------------------------
/ip pool {
   :local poolname
   :local pooladdresses
   :local poolused
   :local poolpercent
   :local minaddress
   :local maxaddress
   :local findindex
   :local tmpint
   :local maxindex
   :local line
   :put ("IP Pool Statistics")
   :put ("------------------")
# Iterate through IP Pools
   :foreach p in=[find] do={
      :set poolname [get $p name]
      :set pooladdresses 0
      :set poolused 0
      :set line ""
      :set line ("     " . $poolname)
#   Iterate through current pool's IP ranges
      :foreach r in=[:toarray [get $p range]] do={
#      Get min and max addresses
         :set findindex [:find [:tostr $r] "-"]
         :if ([:len $findindex] > 0) do={
            :set minaddress [:pick [:tostr $r] 0 $findindex]
            :set maxaddress [:pick [:tostr $r] ($findindex + 1) [:len [:tostr $r]]]
         } else={
            :set minaddress [:tostr $r]
            :set maxaddress [:tostr $r]
         }
#       Convert to array of octets (replace '.' with ',')
         :for x from=0 to=([:len [:tostr $minaddress]] - 1) do={
            :if ([:pick [:tostr $minaddress] $x ($x + 1)] = ".") do={
               :set minaddress ([:pick [:tostr $minaddress] 0 $x] . "," . \
                                       [:pick [:tostr $minaddress] ($x + 1) [:len [:tostr $minaddress]]]) }
         }
         :for x from=0 to=([:len [:tostr $maxaddress]] - 1) do={
            :if ([:pick [:tostr $maxaddress] $x ($x + 1)] = ".") do={
               :set maxaddress ([:pick [:tostr $maxaddress] 0 $x] . "," . \
                                       [:pick [:tostr $maxaddress] ($x + 1) [:len [:tostr $maxaddress]]]) }
         }
#      Calculate available addresses for current range
         :if ([:len [:toarray $minaddress]] = [:len [:toarray $maxaddress]]) do={
            :set maxindex ([:len [:toarray $minaddress]] - 1)
            :for x from=$maxindex to=0 step=-1 do={
#             Calculate 256^($maxindex - $x)
               :set tmpint 1
               :if (($maxindex - $x) > 0) do={
                  :for y from=1 to=($maxindex - $x) do={ :set tmpint (256 * $tmpint) }
               }
               :set tmpint ($tmpint * ([:tonum [:pick [:toarray $maxaddress] $x]] - \
                                                    [:tonum [:pick [:toarray $minaddress] $x]]) )
               :set pooladdresses ($pooladdresses + $tmpint)
#         for x
            }
#      if len array $minaddress = $maxaddress
         }
#      Add current range to total pool's available addresses
         :set pooladdresses ($pooladdresses + 1)
#   foreach r
      }
#   Now, we have the available address for all ranges in this pool
#   Get the number of used addresses for this pool
      :set poolused [:len [used find pool=[:tostr $poolname]]]
      :set poolpercent (($poolused * 100) / $pooladdresses)

#   Output information
      :set line ([:tostr $line] . "  [" . $poolused . "/" . $pooladdresses . "]")
      :set line ([:tostr $line] . "  " . $poolpercent . " % used")

#   Set colored display for used thresholds
      :if ( [:tonum $poolpercent] > $criticalthreshold ) do={
         :log error ("IP Pool " . $poolname . " is " . $poolpercent . "% full")
         :put ([:terminal style varname] . $line)
      } else={
         :if ( [:tonum $poolpercent] > $warnthreshold ) do={
            :log warning ("IP Pool " . $poolname . " is " . $poolpercent . "% full")
            :put ([:terminal style syntax-meta] . $line)
         } else={
            :put ([:terminal style none] . $line)
         }
      }
# foreach p
   }
# /ip pool
}
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